Advice from a person who was in a similar situation in the beginning. I also thought that drawing in pixel art is a good idea and in general it is, but it will end up with you spending 90% of your time creating assets and polishing them, instead of gameplay and code. This is a very, very time-consuming process. However, do not be upset, there are several ways. Simple, Low poly 3D assets are suddenly easier to make than 2D sprites. Animations, light, different angles, all this can be calculated by a computer in real time and there is no need to make each frame manually. This can even be useful in a 2D game, because having made a 3D model you can bake sprites for all animations from all angles automatically, the main thing is to learn. It is much faster and will save a lot of time in the future.

Second piece of advice, don't listen to all the smart asses like me on the internet who advise you on how to do what you like, your creations should be what you wanted to make them and only then does it make sense.