Yes it is good if you don't have a job before joining crypto world but I will like to seek ideas from those that have reasonable jobs and I really want to know if you truly believe in Crypto so as to give away your job and fully dedicate full time to crypto or its not worth leaving everything because I see it as a long journey which I need to learn everyday.
I think it will be better to invest on high ranked coins of coin market cap site for long term, else maybe you will damaged. so it will be better to invest on coins with huge amount of cap. BTC, ETH, NEO,ADA are good for long term.
I dont agree with this, not all of these coins will stay there, but most importantly none of them will give you a return of investment of more than 3-7x on long term, in order to double and triple those huge marketcaps there needs to happen a miracle or you need to wait for like 10 years, invest your coins in better projects which are still undervalued right now, think about WAN, VEN, ICX, AION, and if you even want to take a risk you could go for gems like XBP, PARETO or TFD, these ones will be the new WANs, VENs and ICONs in a couple of months or years, just be patient and hold onto your coins, if it dips never sell them for cheap to someone who is buying in cheap but buy your favorite coins every week or month with smal amounts of money.