Hey JayJolie. I have only read the initial post as im in the midst of homework and dinner for my 5 kiddos, I will come back and read later.
If you are determined then of course it's possible! Go you! I would just say from experince though, make sure you are getting regular treatment in that time so that you get to the root of your issues as to why you abused drugs.
I am glad to see someone else on a high dose (not glad your dose Is high for yout sake of course!) and to read that withdrawals were still bad until you got to that dose. I am on 32mg and constantly get bagged out for it on here. I was waking up in so much pain even getting close to 32 and it was only splitting the dose that worked for me. Anyway....off topic
I have been on a Benzo taper for nearly 3 years and on subs for the same amount of time. Definitely would be as worried, if not more so about your benzo withdrawal, its literal hell. I have not yet detoxed from subs yet but have from most other drugs and Benzos take the absolute cake?.
You can definitely taper the subs over a year, maybe not the benzos. I have been one that has NEVER lived without an addiction.

. I have done plenty of therapy but need to do CBT or dialectal as I have borderline personality disorder, ptsd and heaps of other stuff. I've swung between illegal and legal drugs, severe eating disorders, shopping, exercise, work, smoking, coffee. I seriously don't understand what it is like not to be addicted, and ir scares me. Im not sure if you can relate to any of this. I'm a little off the planet and rambling on lol.
What I wanted to say was yes, maybe make a one year plan and do as much therapy as you can and reassess as you go, or make smaller/short term goals. It's really hard to know how or what you will be feeling in a years time, both withdrawal wise and emotionally / mentally:
You most definitely haven't screwed your life up going on suboxone. It's diffeeent to swapping for another addiction. Yes, it shouldn't be forever but it's done in a controlled way and you don't hahe to worry everyday how to get drugs, life is not as unmanageable as it was before. Of course in a perfect world we wouldn't need SUBOXONE but i know it's keeping me safe, alive and away from opiates which is DEFINITELY better for me and my family. I don't want to be on it forever.
Be careful with jumping off the benzos.
Best of luck. I could relate a lot to your post.