Have you written to Dylan from Figma? He was around 20 when he came up with the idea for Figma and got funders behind him. You NEED to make this happen, Alyssa! This has been a need for very very long.
I think you can almost jump past the MVP stage for validation, this is a pure execution problem and you need to get money, make this your full-time job, and execute asap given your excitement on this problem!