My advice based on my personal experience is this: make sure you get enough protein! Over time I ended up having a permanent physical problem (not horrific, but a real annoyance) as a result of ending up with a protein deficiency when I was vegan.. I imagined I was getting enough protein, but I wasn't nearly educated enough (i.e. not at all, embarrassingly) about the difference between the complete protein with all the essential amino acids which comes from things like dairy, and the greater effort that is involved in obtaining a comparable level of the same nutrients from vegan sources. For some reason I thought I could just drastically change my diet without getting counsel. Clearly you're much smarter than me. (I can't believe I never knew that the reason those amino acids are called "essential" is because our bodies need them but can't produce them. I guess I just thought it was a pet name...)

https://en.wikipedia.org/wiki/Essential_amino_acid
https://en.wikipedia.org/wiki/Vegan_nutrition#Nutrition

Good luck! I wish I could go back to it, but I'm afraid now to end up flaring up the situation that got created previously to become even worse. If I'd known more the first time around I might have been able to keep it up all this time. I'm still mostly vegetarian now though not vegan.. doing the best I can with what I have and all that. Mostly I get my more complete protein from eggs.