I would advise you to before start trading in cryptocurrency you need to have a clear knowledge about this market. This isn't a market like stock or forex, so much volatility is present in the crypto market.
So before starting just research about it thoroughly, read charts, join groups and then you can make your way through it.
Trading is not so difficult to start but some factors are involving which are important to consider for safe and benefited trading. Now
start buying Bitcoins as we know that it is available on low price so market like this cost you less. After buying Bitcoins then make an account on Binance or any other best exchange which will help you in selling time but remember that selling should take place in high market.
That is not trading, that is long term investment which you would not have to bother if what you actually consider low is truly low and could not go lower. Market is not something you just assume you have gotten to the bottom when it comes to trading, as you need to have a lot of signals to give you that, and this is the knowledge that would help you to come with a good strategy on how to play well with the market without getting burned hugely. If you do not have a strategy when it comes to trading that just buying low, then you are going to be sorry since that is more like you gambling.
Trading requires you to know when you should be getting in and out of the market which also includes stop losses and if you cannot do all those without putting in some emotions, then it would not work out well. It is not about just opening an account on an exchange, it is actually more about knowing what to do when you should.