Umming and arring

I keep getting my fingers burnt by getting into trades too late, just when the market is about to turn. I see an opportunity, where it looks like there is a trend up or down. I watch it until I think it is a definite trend and then enter a trade but I leave it too long before I get in. Perhaps I need to just get in quick and be ready to get out again if I am wrong, rather than hang around umming and arring. I'll give that a try. It will mean lots of in/out scratch (hopefully) trades buy will also mean that I should get in on the movement.