"Allah forgives not (the sin of) setting up partners with Him in worship, but He forgives whom He pleases other sins than this." (Soorah 4: 1
It is easy to become a Muslim. All a person has to do is declare
Shahadah can be declared as follows:
“ASH-HADU ANLA ELAHA ILLA-ALLAH WA ASH-HADU ANNA MOHAMMADAN RASUL-ALLAH”.
The English translation is:
"I bear witness that there is no deity worthy to be worshipped but Allah, and I bear witness that Muhammad is His servant and Messenger."
We have to consider that when we declare from our hearts, "there is no god worthy to be worshipped but Allah." It implies on our part of love, devotion, faith and obedience to the rules of Islamic legislation which are legally binding on all Muslims. It is a requirement of "there is no god worthy to be worshipped but Allah," to love for the sake of Allah and to reject for the sake of Allah. This is the finest anchor of belief which make material the meaning of "AL-WALA" and "AL-BARA". It means that a Muslim should love and be loyal to his Muslim brothers. He should, as a practice, dissociate himself completely from the practices of unbelievers and refuse to be influenced by them, both in worldly and religious matters.
When one truly believes that Islam is the true religion of God and that "there is no god worthy to be worshipped but Allah and Muhammad is His servant and Messenger." Then he or she should declare the shahadah right away. He or she should not hesitate.
We are given a certain lifespan. We do not know when that life span will end. It may end this very minute even. Therefore a person should say the shahadah and then work on becoming the best Muslim he or she can be.
Some of you will find some aspects of Islam difficult at first. For instance some new Muslim sisters find it difficult to wear Hijab at first. However with time they have eventually grown in their faith and are now wearing the full Islamic dress and encouraging even sisters born into Muslim families to wear full Islamic dress. Some were vegetarian before they became Muslim. Eating meat seemed impossible to them. Now after a few years they have started to even eat meat. Please do not worry about any barriers you may have. become Muslims and you will see those barriers crashing down as you grow in your religion.