What if I invest little by little, only in Bitcoin, would that work as well ?
I think this is a simple and wise strategy, in addition to cultivating, at least we can anticipate, the price movements that occur, and you can know what to do later on BTC that have or have not you bought.
Yes, diversification is an essential strategy in the crytocurrency market. In addition to investing in the crytocurrency market, I also recommend you to explore and invest in other markets such as gold and securities. For me, 50% with gold, 20% with stock and the other 30% I buy Bitcoin, ETH