There comes a point when we need to practice ourselves. Classes will motivate us, show where we are going wrong and teach us new things, but that’s no replacement for trying things ourselves.
For me when I practice sometimes I have to think what asanas do I want to do, and they might be easier ones for me! So I need to try legs poses each time to make sure I don’t avoid those. If I don’t do something for a while it can then become harder when I come back to it.
If you are wanting to start your own practice, set a realistic time limit and try it.