FWIW, every time I buy a stock I compute my breakeven sale price (to account for broker commission) and a general stack of PPS's that give me 1.5, 3, 6, 9, 12 and 20% gain. I keep a running journal (in a text file) of every buy & sell I make and I include this in the entry. Example for TMNG:
In TMNG - 5925@0.62 - Breakeven=.628 (+1.5% = .637, +3% = .647, +6% = .665, +9% = .684, +12% = .702, +20% = .752)
You can compute these using a spreadsheet app if you understand how your broker's commission works. I like to keep these in mind so if the PPS for a stock. Remember any profit is a good profit--even 1% profit is good. As long as you don't lose. Some plays look awesome going in but end up being a ~3-6% gainer, which IMO is still EXCELLENT, then your next play might end up being a 12% gainer or even more. All the luck of the draw.
If the stock has appreciated a decent amount, say 5+% over my breakeven price, I set up a stop-loss right at my breakeven price so if the stock ever drops down to that point I will automatically sell it with no loss--no stress on my back. Otherwise I'll let it ride and see how far it flies.
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