PLEASE CHECK THIS OUT, BOUGHT ATOM LOW

I wanted to make a chart here showing my trade of ATOM. I do not have a lot of money so I am slowly waiting for the right moments to by crypto to sell off at 10-30% gain. In this idea, I was working like normal and spotted a drastic drop in bitcoin. Per the usual, all the altcoins followed in a quick dip. I wait and watched to see if this looked long term or shot term. Once i spotted recovery in btc I immediately bought ATOM. If all goes well here i should see a 20-30 % gain and then cash out and wait for my next opportunity.

I am new to this so please keep in mind I may have gotten lucky. Would love any feedback!