Carry an agreed group contribution through

Whenyou agree to help with a shared gathering

Take one useful job with a clear limit: bring the game, book the accessible room or set up chairs. Do it as agreed; warn the group early if you need to change it.

Make it easier

Choose a seated, remote or five-minute job that fits your capacity.

Make it harder

Teach the job to another willing person so ownership can rotate.

Progression

Keep the role bounded; change or stop it if it crowds out enjoying the gathering.