
and welcome to the forum.
In Islam, we have only two religious occasions of celebration/congratulation, which is 1st Shawwaal (Eid ul Fitr) and 10th Dhul Hijjah (Eid ul Adha). These are the two occasions we commemorate and celebrate, as these are the the only two instructed for us by the Prophet

. We do not celebrate or commemorate his death or birth, and nor did the sahaabah (may Allah be pleased with them). The best thing is to try to follow the Prophets sunnah as best as we can, and try to avoid all innovations in the deen, as he told us to avoid.