My suggestions..
- do pull ups routine once/twice a week and make it bit harder each session, add more reps, add more weight [progress with reps until you can get to 8-10 reps first then add more weight and do max reps you can], find a spotter that will help you to pull you up to do extra 2-3 pull ups and do negatives on your own slooowly.
- check your diet especially proteins intake
- get more rest
something is very wrong if you stay on your level for a whole year. even a couple of weeks of no progress should alarm you.
- do pull ups routine once/twice a week and make it bit harder each session, add more reps, add more weight [progress with reps until you can get to 8-10 reps first then add more weight and do max reps you can], find a spotter that will help you to pull you up to do extra 2-3 pull ups and do negatives on your own slooowly.
- check your diet especially proteins intake
- get more rest
something is very wrong if you stay on your level for a whole year. even a couple of weeks of no progress should alarm you.