What to do if you can not hold plank yet

What to do if you cannot hold a side plank yet
If a full side plank feels too hard, that is not a failure. It just means you are not there yet.
Core strength is built progressively.
Start where you are:
Bend your knees and do a modified side plank
Use your hand for extra support
Shorten the hold to 5 or 10 seconds
Focus on keeping your body aligned, not how long you last
You can also build the same strength with other movements like carries, supported holds, and controlled strength work.
The goal is not to force the hardest version.
The goal is to build stability step by step.
Most people do not need a harder exercise.
They need a more appropriate starting point.​