Two things. Ease the suit off bit by bit. Push the suit off. Don't pull. Think of it as giving birth. Women push babies out of small flexible tubes. It's bad when they get pulled out.
People have trouble get out of snug wetsuit because they're doing it wrong. You think, "I want to peel this wetsuit off." so you start pulling on it and try to get it off all in one movement. That is wrong.
The trick is to ease it off bit by bit. Get your head out of the neck (or hood if you have one). Ease the neck over your shoulder. Ease the other side over the other shoulder. Pause for a few seconds. Don't rush it.
Ease each side down a bit further. It's best to push it down. Don't pull. That just stretches the fabric and makes it grip tighter. It can tear the fabric, especially if you have long finger nails.
Keeping pushing each side down a bit. If you can reach up behind you and pull down a little in the middle of your back.
Keep pushing down until you get the top to your elbows. You might want to concentrate on one side until that arm is free. Push. Don't pull until your elbow is out and the suit is down to your wrist.
Once you get your arms free then push it down to your waist and down over your legs and feet. You can pull a bit gently but pushing is much better.