The more you spread the seeds of investment, the wider the source of income you have. Choosing investment in BTC, Altcoin, or ICO, in my opinion, is very good because if you have joined Crypto but cannot explore, it will be very unfortunate because it does not take advantage of the opportunities that already exist as well as possible.
I would also invest in all three. Three different kinds of experience that can teach you a lot and give you so much for your future success. Dealing with holding, trading, bounties, ICOs gave me a lot.
I would not advise newcomers to follow your example, it is better to start investing in one thing, see what the result will be, write out all the errors and difficulties, and then continue. So you quickly gain experience and do not miss any valuable information.