1. Never invest $ you can't afford to lose!
2. Create investing rules and stick to them - (e.g. 30% loss and you're out and don't look back, learn the basics, fundamentals and technical analysis which is just fancy terminology for reading charts, etc.)
3. Use Stop Limit Orders - to secure your profits and move them up gradually as your profits increase and trim or sell some of your shares/contracts when it jumps up
4. Green is Green (no matter what the %) and Losses are Lessons - never beat yourself up with could have, would have, should have.  Learn from your experiences as well as other people's experiennces.
5. Investing in myself and continuously learning increases my ROI and ability to give back!