Momentum Trading

Am considering this kind of trading, somewhere between day trading and long term hold.

Would think it is possible to make 1% a week on capital but who knows , is also possible to lose if you pick the trend incorrectly.
The biggest problem I see is when holding a rising stock it is natural to not want to sell for fear of missing out on larger gains, sort of defeats the purpose. Set a target per stock and stick to it.
Have any here had experience in this sort of investing, love to hear your experiences.