Focusing on Form

I've now been running for 3 weeks after taking 8 weeks off for my Osteitis Pubis and torn adductor. As I said in my last post, I am using the run-walk approach to gradually get back into my normal routine. So far my longest run has been 5 x (9 minutes running, 90 seconds walking). That adds up to 45 minutes of running total.
I'm probably at a point where I can start to get rid of the walk breaks but I like them because 1) it's crazy hot and humid and I need my heart rate to come down and 2) I'm 1...