Perhaps you will have enough sense to not be as stubborn as I sometimes can be. I regret it took me so long to accept Islam, but the reality is I was not ready until then. The moment you truly know that Islam is the truth, that is the moment you want to say the Shahadah. Upon saying the Shahadah with sincerity, you are from that moment a Muslim.
It only takes a matter of seconds to say the Shahada, a few words spoken with sincerity. the only required witness is Allaah(swt). Although most who say the Shahadah alone will seek to repeat it at a Mosque in front of witnesses. Short simple words that mean so much if you believe them to be true.
أشهد أن لا إله إلاَّ الله و أشهد أن محمد رسول الله
Ashadu an la ilaha illa illa-ilah, wa ashadu anna muhammadan rasulullah.
"I testify that there is no god but God (Allah), and I testify that Muhammad is the messenger of God (Allah).
It only takes a matter of seconds to become a Muslim, but it takes a lifetime to be a Muslim.