1) Write down all of your new ideas on a list. This will help you stop thinking about them, without losing them forever. 2) Wait for an idea to really grab you

1) Write down all of your new ideas on a list. This will help you stop thinking about them, without losing them forever. 2) Wait for an idea to really grab you. Keep thinking about it. Try to convince yourself that it's just not a very good idea. Have other people critique it harshly. 3) If you're still excited about the idea then start working on a prototype. Spend a couple weeks on it, definitely not months. Work on it long enough to know you're not going to get bored of it, but not long enough that you'll feel too invested to end it. 4) Take a really harsh look at the idea now and your motivation to continue working on it. If you aren't more optimistic and excited than when you started kill the project now. 5) Never give up. Never surrender.