Before even going into trading or mining or anything involving any sort of investments, do a lot of research. When I mean a lot, I really mean a lot. Focus first on learning about the technology. Don't focus on making profit for now.

Some sources:
A Beginner's Guide to Blockchain Technology: https://www.coindesk.com/information/
Introduction to Bitcoin by aantonop: https://www.youtube.com/watch?v=l1si5ZWLgy0
Bitcoin for beginners by aantonop: https://www.youtube.com/watch?v=UlKZ83REIkA
“Is Bitcoin Mining Profitable in 2017?“: https://99bitcoins.com/bitcoin-mining-profitable-beginners-explanation/