Been there! From 4-10 months our little girl slept for 30 minutes at a time, except for 3 times in that whole 6 months, where she went for an hour. It frustrated me to tears (and beyond!)
And then, at 10 months, just after we moved house, and just as she was becoming mobile, we started getting hour long naps. I didn't know what to do with myself! All of a sudden I had time to do not only my housework, but even some hobbies! I don't know whether it was the house move (we went from a corner block to a much quieter location) or that she started tummy sleeping at night, which was helping her to sleep right through, or if she was exhausting herself with her new mobility. But it got better.

The downside, though (what? There's a down side??) is that now I have to work my life around her day sleeps. Back in the day I could put her down any time, knowing we'd never be more than half an hour late to anything! Small price to pay, though, for a well-rested baby and a productive craft corner

It will get better. I second the suggestion of babywearing, or feeding to sleep, or whatever it takes to just roll with it.