I want to serve Islam... so what should I do?

Whoever wishes to serve Islam must fulfill four religious obligations: knowledge (knowing Allah, His Prophet, and the religion of Islam with evidence), acting upon it, inviting others to it, and patiently enduring harm in its path. The evidence for this is Surah Al-Asr: (By Al-Asr (the time). Verily, man is in loss. Except for those who have believed and done righteous deeds and advised each other to truth and advised each other to patience). So, if you have learned and acted, then invite others with wisdom and insight, and trust in this path with patience and steadfastness.