This is not from a hater nor a nuthugger
First, admit to yourself what your chin is your main weakness. Then take a page out of Wlads book and tweak your style to be more defensive. This will take a change of trainers (Roach is not a good defensive trainer, Manny Stewart is)
Second, hand & foot speed are your best tools. Maximize then.
Third, learn to keep your cool when you get tagged, resist the urge to score a big punch when you just took one. This is what happened last night. Get on that bicycle until your head is right, then look for openings
Lastly, stay at 140lbs. Lots of good money fights here. Too many good punchers at 147+