There's a lot of things you need to consider that if you don't give importance your investment may be at risk so here are some of the things ou need to consider or to study.
Learn about the basics first such as:
Bitcoin wallets
How Bitcoin works
What is Blockchain
Types of wallet
And different kinds of investments
Second Learn what kind of investments you need to do, here are:
Trading
Holding
When you've decided what kind of investment you're going to do start finding exchange where you will bought your first bitcoin there's a lot of platforms where you can buy bitcoins such as:
LocalBitcoins
Binance
Coinbase
Just search on the internet.
NOTE: You should know the risk you're going to face when it comes to investment remember that there's no assurance that if you invest you're going to earn so invest only what you can afford to lose.
Hopefully the Americans will get things back on track slowly, I would be happy if we finished the day around $8800-$8900. It seems the Americans are doing all the hard work at the moment, the Rest Of The World needs to help!

Should be an interesting day today. Even if it ends up trending down again, I think the market will be a lot more optimistic after yesterday which is a sign of good things to come