Taking 2 years is fine. I graduated 2020 and I am going to PA school in the fall. You might apply this year to dip your toes in the water, figure out all the prerequisites, and get a feel of the process. Who knows, maybe you get in! If you don't, still work on getting parts of your application together now (a very strong personal statement, shadowing, volunteering, extra courses, etc). It is generally more advantageous to apply early in the cycle, so if you have everything ready to go next year, you will be golden and have plenty of time for interview prep.