GBP/USD short my first analysis guys so please respect that

So I have identified a few different support and resistance levels I believe currently running in between 1.2860 and 1.2800 if my support is broken and I can see it broken strong I am going to go short and TP=1.2200 I will probably put a few TP along the way see how we go. if my resistance line is broken I may choose to go long and watch manually. please would appreciate feedback but please bear in mind this is my first time at analysis myself.