HELP !!

i need help. i am afraid i’m so used to rubbing myself (have been doing for years, discovered this when i was very young) that i don’t feel anything from any type of penetration except pain. doesn’t feel good, the only thing that feels good is rubbing. I have a dildo and am trying to get to a point where i can use that but it just feels so uncomfortable that i almost always stop using it and resume rubbing my clit. anyone have tips ?