How do you change the sheets on a bed that's against the wall?

I have a queen size platform bed. Because of the size of my bedroom, the bed is against the wall (bed is in the corner so head and side are both against a wall).

I am finding it almost impossible to put sheets on the bed. The mattress has to be picked up to get the fitted sheet under the corner, and the mattress is pretty heavy and bulky. To put the fitted sheet on the corner that’s against the wall is almost impossible.

Right now the part of the mattress that I am laying on has the sheet kind of placed the way it should be. The part that I’m not laying on has the sheet in a bunch.

I looked at YouTube and there’s a girl who’s about 12 showing how to put a duvet on her twin size bed. It doesn’t compare to a queen size bed.

I guess one solution would be to have someone put wheels on the bed, but that doesn’t help right now.

I used to have a cleaning lady and she did it – I don’t know how. It was probably a feat.