I recently purchased 0.0045 Bitcoins which is still present in my trust wallet I believe with me owning a fraction of the worlds Bitcoin although a very tiny fraction in practical I am now a crypto currency investor in essence a Bitcoin investor
A good start, but this is probably not the end goal for your investment, try to multiply your bitcoins, because so far your investment seems too small to create a new topic for this. But once you have done that, you are now obligated to achieve good results in investing.

And also think about safe storage, since a trust wallet is not the most reliable option out there. While the amount of investment is insignificant, this is not critical, but in the future, this must be thought about.