The problem that I see in the opening is that there are times when the price moves very very quickly, I suppose due to the high frequency machines. It is difficult to capture the movement from the beginning. How do you manage the situation? When you go, the high frequency machines have already done their job.
I've got to tell you, i've said it before and I truly believe it. Shorter term trading, is much harder than medium term trading in my opinion.
If you are worried about your analysis of the opening, I can't even analyze that well and I'm 8 years in.
I find the 4hr chart time frame, is a great learning tool. Start with that instead of 5 minute, your going to lose your mind on the shorter term stuff.
People try to over complicate trading. Why don't you look through 2000 stocks, make a list of the 40 strongest trending stocks, and design a system that get's you in on a pull back. This is trading 101 freshman year in college. Make it basic and grow from there.
Here is another pointer, are you going to be one of these guys that trys to win 90% of the time? or 40% or 75%? Either one does not determine how much money you make, you have to be comfortable in your win/loss/scratch profile.
My profile is:
45% win
35% loss
20% scratch (BE + 1)
Virtu Financial, one of the largest High Frequency shops, is similar to my risk/return profile. I read they are 50, 25, 25.
It starts with an edge, then design a system around the edge, and understand the above profile.
Your edge is you are certainly not fast at trading decision making... you are slow... so start with longer time frames and learn.