Hindsight's a tough teacher, right? Don't beat yourself up; many of us had our doubts about Bitcoin at first. The important thing is, you're embracing it now. Welcome to the crypto rollercoaster, my friend!
Same thoughts here. There's no point now bringing in what you've missed in the past. Forgive yourself for what you think is a bad decision. Just know that BTC has a lot more to offer. There are a lot more opportunities now and you can use that experience as a frame of reference not to miss that kind of opportunity again.
It won't be easy either. Be it you are investing or trading. It will be challenging but it will surely be worth it because it is the generational wealth that we all are battling for in the market.