First post here but have been doing some research for about the last month. Heres my situation and just looking to get some info from experienced individuals. I'm currently 31 5'9 160 and a former athelet. I still work out and try and stay in shape but ever since I hit 30 I've notice my energy level dropping and my workouts not doing what I'd like for my body. My goal is to put on about 5-7 LBS of muscle (tighten everything up)and get the energy level up again. I've just hit a dead end with muscle gain. I'm real serious about starting a 6 month cycle of hgh run as such:

week 1-4 (1iu per day)
week 5 & 6 ( 2 iu per day)
after that do 2.5 iu per day until the 6 months are up

What are your thought? Should It be 5 days on 2 days off? Should I cycle different?
I've also looked at the search menu but just can't seem to find the right combo. Thanks for any help you could give.