First steps to trusting and believing myself when no one does?

Feels like with most things people think I can’t do anything on my own or at all. For example with driving. No one will teach me how to drive on the highway and then whenever I say to people I’m going to learn to do it they constantly tell me “you’re going to crash you can’t do it” and I’m 20 and am afraid to go on the highway. But most things are like that always afraid of what could go wrong and never looking at the positive side. That mentality has stopped me from a lot of things and I’m tired of it.
First steps to trusting and believing myself when no one does?
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