I have done my own autoportraits too and it takes a huge amount of time, jumping to set up the camera with the auto timer, then jumping back into position and trying not to smile like a manic goof. But, I managed to get one or two decent shots in the end.
The answer has to be to get a remote trigger for your camera. Not always easy to buy unless you do so at the time of the purchase of the camera.
So, the best tip that I can offer here is, next time that you buy a digital camera, buy the remote trigger at the same time.
I asked my husband to take the photos of me once, unfortunately, two artistic prima-donnas in the same room taking lead at the same time, was one prima-donna too many.
Go solo and buy a remote trigger! (and save your relationship)