I have a few tips that you can take or leave.
1, I'm 100% vegan and when compared to my experiences as a meat eater I can't say that my progress has slowed as a result of a low protein diet (approx 80g/day), high calorie diet (approx 4000+/day). The biggest thing that I do to slow progress is to not take in enough calories in general. I'm sure others have different perspectives, but that's just been my experience.
2. You mentioned "recording your progress and routine and allow your body to rest" and I think there's a lot of wisdom in that. If you aren't getting stronger, you aren't growing muscle. If you aren't growing muscle you are either 1. not giving yourself enough fuel, 2. you aren't pushing your body enough to demand muscle growth, or 3. you aren't giving yourself adequate time to recover from your workouts.
3. Food choices - stick to whole, unprocessed, natural foods. ie. fruits, vegetables, brown rice, potatoes, quinoa, sweet potatoes, whatever. If you choose to add other things in then that's up to you, but I can't personally advocate whey proteins and animal products for health. If you need them for some reason, then yes of course, take them. But if you just use them because someone convinced you that you need them then I would drop em like a bad habit.
Those are just a few of my very biased opinions. They are 1 part clinical findings, 2 parts bro science (personal experiences of mine and others).
What kind of routine do you follow?
If you are looking for reading information Robert Cheek has a book on vegan bodybuilding. Dusan Dudas has a book called "naturally amazing". Robert's book is about 1/2 the price of Dusan's book and is available on this site.
P.S. make sure to get enough sleep too. IMO, 8 hours is a minimum.