Aslamu Alikum
Welcome.
You can start off by doing namaz 5 times a day. That should be your main priority since many Muslims I know find it difficult to pray on a regular basis. Follow the Islamic dress code and wear a Hijab, unless if you already follow it.
Do simple and small things to change your lifestyle. What do you dislike about yourself and what do you want to change about yourself in order to be a good Muslim? Read the Quran everyday. You only have to read small amounts and Allah shall recognise the effort you put in to be a good Muslim.
Slowly everyday make small changes. Before you go to sleep think of what you can do better tomorrow. Whatever decision you make or whatever you say or whatever actions you take, Allah is always watching you. This way, you will have a constant remainder of Allah.
Overall what I can say it will not be easy, but don't loose hope.