do you support cold/hot wallets?

Cannot see those who made it from passive income only. Great examples that you can reach higher when doing something yourself and not waiting for the gift of heaven.

Sold a half of my bitcoins when exchange rate was 15000$ per btc. Regret not waiting until 20000$.

Beginner traders' portfolios are highly likely to fail among portfolios of experienced ones - if you attract some, of course. No one wants to trust his capital to someone with almost no background. Have you thought about the ways of managing it? It would be a great chance to start.

Paper wallet+BIP38+bank cell=profit. Personally have no idea how to break this security. However, not very convenient, unless you keep calm and hodl.