I’m afraid you’re going to lose your patience, but that’s okay. :)

Depending on the child, sleep can be a very challenging experience. It may be a “phase” but may run longer than you’d hope.

You can look at switching from two naps to one nap or trying for a bit more play before the evening bedtime. Maybe some noise machine if you think that the waking up is due to environmental factors.

Any way, hang in there… you’re doing great!