Re: Begginers in trading ( share you experiences about trading )
Well, people have already provided you with a lot of tips and useful information 
The only thing I can add is that you will need a reputable and user-frienly exchange. I suggest CEX (https://cex.io/). It has a limited number of currency pairs, but their security is great which is essential for dealing with crypto.
CEX ? If you are really looking for a reputable exchange with a lot of supported cryptocurrencies that you can trade, I would rather go for the likes of Bittrex or Binance. Why CEX ? The only thing I can add is that you will need a reputable and user-frienly exchange. I suggest CEX (https://cex.io/). It has a limited number of currency pairs, but their security is great which is essential for dealing with crypto.I am not saying CEX is a bad exchange, but when you are comparing exchanges with each other, CEX does not even stand the chance of the top 5 in the market.
As a beginner in trading however, what you should even be doing first is to learn and afterwards practice using a demo site like that of bitmex to get your hands dirty, fine tune your strategy and then get better, while now deciding if you want to go into spot trading or leverage trading which in that case I would rather choose binance most especially.