Amended Tax

So, I did a paper return for my 2020 taxes, but I realized I never sent them to the IRS. By this time, I also had noticed a mistake on my return so I amended it, and then sent in the amended return. However, I never sent the original return in with my signature. It’s been 2 months since I sent my amended return and it won’t show up on my “Where’s My Amended Return?”. I have tried to contact the IRS but I always get transferred to a line that is always busy. What should I do?