Which move could be riskier; trusting yourself or financial institutions?
Without any offense, if you need to ask this question, then perhaps bitcoin isn't for you.
Bitcoin was developed for this exact reason; check the quote from
literally the first sentence
of the abstract of the bitcoin whitepaper:
Abstract. A purely peer-to-peer version of electronic cash would allow online
payments to be sent directly from one party to another without going through a
financial institution.
Trusting Bitcoin with financial institutions is no different (and actually it's worse) than trusting a bank for you money, or a financial institution for your stocks and bonds.
It's all good if you invest in the traditional way (stock, bonds, deposits, options etc.), but Bitcoin was invented to make us think differently, not to incorporate a new asset in the traditional system.