I had a Fulkerson/MPFL reconstruction 7 weeks ago. If you wander over to the Post Op Diaries (<100 Posts) you can find many post op diaries with similar operations, and mine as well. Just look for my name.
Those diaries will give you some insight into what other people have experienced.
Many people aren't allowed to put weight on their leg for up to 6 weeks after a Fulkerson, since the bone has been operated on. So using only 1 crutch sounds like it's ok. I am now using just a cane, and nearly off that. Each doctor has their own protocol, and so long as the doctor or PT isn't concerned, you are probably doing alright. Just stick to what they tell you, and ask them how you're doing.
If you're confused about something, or concerned, ask them to explain it for you, just so you know why the recovery protocol is done the way it is.
And trust me, I know how you feel about not being back to normal! It's really frustrating to have limitations, especially for those of us who are active and impatient! I can't tell you what the worst case scenario is for this operation. It's different for each person, so it's hard to say exactly. I know my OS thinks I'll be walking normally with few limitations come August, which is 3 months post op. But I'm pretty happy with how I am now, and can see that things are continuing to improve, and I suspect I'll be walking normally and doing things normally before then. We'll see!
And your spelling seemed fine to me!