Investing will require you to have money, purchase bitcoin, and at the end you need to store bitcoin somewhere. Where is safe for your Bitcoin storage?
It is of course not at centralized exchanges, but in your non custodial and if possible, open source wallets. If an investor does not mind to learn how and where to store bitcoin safely, it's not good to start investment in bitcoin.
Losing 10 Dollars for being stupid is a lesson. Next time you will be less stupid. Learning to control emotions is one example of something you can not learn through reading but through real experience. It is one thing to read what to do during War, it is another to suddenly find yourself in the middle of one! You may know what to do, but if you lack self control you may go crazy before you even remember what to do.