You have to do it: do it and don’t hesitate

We appreciate
your question and your efforts in studying and researching very much,
especially since you have achieved such great and true results. Although
we believe most strongly that it is essential to become Muslim and that
Islam is the only religion which Allaah will accept, because He revealed
it as the final religion and way, we do understand something of the
difficulty involved in leaving that which one is used to. But the wise
person knows that he has to follow the truth even if it becomes clear
to him after many years and even if he grew up in a different way. Hence
Allaah condemned those who refused to follow the truth because they
were following the ways of their forefathers. Allaah says (interpretation
of the meaning):
“And when it is said to them: “Come to what Allaah has
revealed and unto the Messenger (Muhammad for the verdict of that which
you have made unlawful).” They say: “Enough for us is that
which we found our fathers following,” even though their fathers
had no knowledge whatsoever and nor guidance” [al-Maa’idah 5:104]
“And when it is said to them: “Follow that which Allaah has
sent down”, they say: “Nay, we shall follow that which we
found our fathers (following).” (Would they do so) even if Shaytaan
(Satan) invites them to the torment of the Fire?” [Luqmaan 31:21]
“And similarly, We sent not a warner before you (O Muhammad) to
any town (people) but the luxurious ones among them said: “We found
our fathers following a certain way and religion, and we will indeed
follow their footsteps.” (The warner) said: “Even if I bring
you better guidance than that which you found your fathers following?”
[al-Zukhruf 43:23-24]

The matter will not be too difficult for you – in sha Allaah (if Allaah
wills) – for indeed if you believe in Islaam you will be believing in
all of the previous Prophets, and you will be believing in the Divine
Books. Allaah says (interpretation of the meaning):
“O you who believe! Believe in Allaah, and His Messenger (Muhammad),
and the Book (the Qur’aan) which He has sent down to His Messenger,
and the Scripture which He sent down to those before (him); and whosoever
disbelieves in Allaah, His Angels, His Books, His Messengers, and the
Last Day, then indeed he has strayed far away” [al-Nisa’ 4:136]

If you become Muslim, you will not be cut off from the sound roots,
for every Muslim believes in the Messiah ‘Eesa (Jesus) – peace be upon
him – as a Prophet and Messenger, and he believes in the true Gospel
– before it was distorted – as a Book that was revealed by Allaah. Maybe
it will encourage you to know that everyone who used to believe in ‘Eesa
and then believes in Muhammad (peace
and blessings of Allaah be upon him) will have the reward twice. Hence
when the Prophet (peace and blessings
of Allaah be upon him) sent his letter to Heraclius, the Christian ruler
of Byzantium, inviting him to Islam, he said:
“In the Name of Allaah, Most Gracious, Most Merciful. From Muhammad
the slave and Messenger of Allaah, to Heraclius the ruler of Byzantium.
Peace be upon those who follow true guidance. I invite you with the
call of Islam. Become Muslim and you will be safe. Become Muslim and
Allaah will give you your reward twice, but if you refuse, then the
sin of the husbandmen will be upon you. ‘Say (O Muhammad): “O
people of the Scripture (Jews and Christians): Come to a word that is
just between us and you, that we worship none but Allaah (Alone), and
that we associate no partners with Him, and that none of us shall take
others as lords besides Allaah. Then, if they turn away, say: “Bear
witness that we are Muslims.” [Aal ‘Imraan 64 – interpretation
of the meaning].” (Reported by al-Bukhaari, 2723)

The Prophet of Islam, Muhammad
(peace and blessings of Allaah be upon him) said: “There are three
who will be given their reward twice: a man from among the People of
the Book who believed in his Prophet, then when he comes to know of
the Prophet [Muhammad] (peace and
blessings of Allaah be upon him), then he believes in him and follows
him; he will have two rewards” (The hadeeth was narrated
by Muslim, 219).

On the basis of the above, the answer to your question is: yes, it is
very important, indeed essential, for you to take this step which will
change your life, bringing you a life of joy and tranquillity through
being close to Allaah and believing in His Oneness (Tawheed), having
the pleasure of worshipping and remembering Him, and earning reward
by obeying Him and saving these rewards for the Day when man will need
every single reward:
“On the Day when every person will be confronted with all the
good he has done, and all the evil he has done, he will wish that there
were a great distance between him and his evil. And Allaah warns you
against Himself (His punishment) and Allaah is full of kindness to (His)
slaves” [Aal ‘Imraan 3:30 – interpretation of the meaning]

With regard to your name, if it has no meanings that involve Shirk (associating
others with Allaah) or Kufr (disbelief), then it is permissible for
you to keep your name. The name Ismaa’eel (Ishmael) is very suitable;
how could it be otherwise when Ismaa’eel was a Prophet of Allaah of
whom Allaah says (interpretation of the meaning):
“And mention in the Book (the Qur’aan) Ismaa’eel (Ishmael).
Verily, he was true to what he promised, and he was a Messenger, (and)
a Prophet. And he used to enjoin on his family and his people As-Salaat
(the prayers) and the Zakaat, and his Lord was pleased with him”
[Maryam 19:54-55]

We ask Allaah to help us and you to do that which He loves and which
pleases Him, and to guide us to the Straight Path, for Allaah guides
whom He wills and He knows best those who are guided.