If you are buying BTC its great decision,But review here is that amount you afford to hold for long run or if lost? Have you selected a real legit platform to secure your BTC. If answer is yes then go with it and you will get amazing results after couple of years.
Further suggestion is that if want to hold must go with staking of stable coins it will give you Upto 14% ROI. When you feel the BTC is on peak and your target price here just quit the staking.
If you are pertaining to some exchanges, or in safer ways, online cryptocurrency wallet that will help you hodl your BTC, then try to consider buying some hardware tools which really help you secure your funds such as a ledger nano which is considerably cheap and easy to use. I see, OP you have allot to earn in cryptocurrency and this will be the best tool for you to secure your funds aside from directly investing it to some exchanges where the rate of hacking is high. Though, I cannot guarantee you ROI with this, though, you need to accept the risk with cryptocurrencies extreme volatility.