Messed up

Question

So everyone i have something in my mind right now and i need an answer.

I have been thinking if i should write something that isn't in english.

I mean it will have english but the story won't be all written in english.

English is my second language and i can't express and explain what really is in my mind if i keep writing in english because i get insecure and i feel like my english isn't good.

I am planning on writing a book in filipino/tagalog.

Tell me your thoughts. Would that be okay?