2. Spot Trading :
This is a tangible skill that differentiate you from another person. With this you know how to make money trading. But ensure you stay away from futures trading. Use spot trading to start.
I don't know if you numbered your message according to the steps newbie should follow. But after knowledge, investing should always come next and the coins that are best to invest in is Bitcoin before gambling on any other crypto you like. Note, investing in them should be a gamble and not as an investment that you put much hope on because things can go wrong with them to the extend of you losing everything. Spot trading and trading in general which includes options and future trades shouldn't be encouraged as easy or you'll put a wrong mindset that earnings is easy in those sections of the industry though it isn't an impossible act to try.
3. Airdrop Farming:
This is a low risk way to make money in crypto. Learn the popular airdrop in crypto space. Currently Telegram mini app farming is what is reigning.
Few months back if you would had ask me I'll say this was a total waste of time and it would be better you look for a job than focus on this (which is still the fact) but due to recent events, Airdrops are becoming a thing again and that's just something about the crypto industry. Trends that fallout can always come back. Farming airdrop shouldn't be something you spend your whole time on because most of them will be a complete time waster while just a 1% succeed. Be extremely cautious when farming so the small you have don't get stolen trying to farm for more, investing is always superior.