Vegan turning fat into muscle

You can't turn fat into muscle, but you can certainly gain muscle. You'll want a resistance training program -- either weights or body weight resistance. Without knowing your specific situation, many people find that when they begin regular and consistent resistance training, they're much happier with how their body looks (it was certainly the case for me).

What do you mean by "stay on track"? I eat lots of beans, grains, vegetables, tofu, tempeh, seitan along with some fruit, plant oils, and other vegan foods and I feel like I'm on a pretty good track. Do you have specific issues or concerns with your diet?

You can't turn fat into muscle.
You can lose fat to make your muscles more visible. And you can increase the size of the muscle you have.
But fat doesn't turn in to muscle. On the reverse, when you gain fat, your muscle didn't turn into fat. You may be gaining fat making your muscle less visible or losing muscle mass because of inactivity, or a combo of both.
But fat is fat and muscle is muscle and they don't become the other.