I would disagree with your statement about not buying a stock because it is already up a lot. I Have still made lots of money buying stocks already up. Actually IF a stock hasnt moved I dont touch it until it is moving.
Think aabout HYRF - it was at .20 and now at a buck within a week. Many many stocks move a lot further after an 80% move. '
At one time I would never chase a stock up that much as a rule. BUT I then realized that on the Pinks and OTCBB that a 80% move is often just the beginning.
True a 80% move you need to be careful but it may be down 95% and a 80% upwards move may still have that same stock still down 80% friom recent highs