It's been quite a long time to be on. Low dose or high dose, your body will be shut down and after a year, probably shut down hard. Recovery is going to take awhile, but it can be done. I've seen it happen for a lot of guys that have been on long term but patience is going to be key. Expect some ups and downs. Worst case, you need TRT. Best case, you make a full recovery. Expect to see some temporary sets backs and muscle loss but either way, recover or go to TRT, you'll gain it back quickly.
I would outline it something like this
Wk 1-4
500-1000iu 2x wk
aromisin 12.5mg EOD
Wk 4
Clomid 100mg ED
Wk 5-8
Clomid 50mg ED
See how things go from there. Possibly reduce the clomid a little more and see how things go from there. You may need to run it further. Also, I cannot give you dosing feedback on triptorelin because I have not used it, but I hear it can work very well. Just read up on how to use it. It can do the trick at the right dose, but taking mega doses can cause chemical castration