If you have regular amounts of money (weekly, monthly) you can put into crypto, then investing through 2021 is a 1,000,000X better idea.
Trading seems like a good idea, but there is a huge amount of risk compared to investing.. and you can't read a technical analysis course, no matter how good it is, and be prepared for the kinds of risk you'll encounter.
Also, trading sucks up huge amounts of time - huge, and the levels of stress can be intense.
Best way for someone without much trading knowledge to do well in 2021 is (in my opinion only) to spend what you can each week on buying cryptocurrencies and aim to stock up as much as you can continuously by the end of the year.
Each week buy whatever you can afford to. Research different cryptos - look at the fundamentals of each one to find good investment. Most cryptos will at least double between now and the end of the year, so you can probably do well on most picks from the top 200 especially.
Trading is hard, really hard, and it takes a lot of loss before you can trade reliably and make profits regularly. It's not something most people can just learn and a month later start making money.
Buying BTC at $20K during an uptrend and selling at $30K is not trading, and in fact it's the kiss of death for many guys because it gives you false confidence, you think you can trade, then you get pumped in the near future.
Just buy what you can and hold til we reach something that looks like the peak of the bull run, sell before everyone else does, and hopefully make at least 2X on everything you invest between now and then.