Being a governor is what you make of it. As someone mentions above, you may get away with just turning up to the meetings (mine are half termly) but that is not effective governance. To be an effective governor it takes a lot of time and effort.
Learning about how the education system works, what you are holding the school to account for, what best looks like.
There are school visits between meetings which have to be documented, training sessions on both general governance issues and whatever is your specialist governor role is. If OFSTED arrives, the governing board are also inspected. There can be appeals panels, recruitment panels, sub committees. The governing board should have a presence at school events.
Being a governor is a legally accountable role; how well the school is governed is assessed by OFSTED. You aren’t governing well if you are only attending meetings.
I’m in my third term as a co-opted governor at my children’s school (namely I applied when the advertised a role to fill a skill set need, rather than having been elected as a parent).
I love it but it easily takes 45 plus hours an academic year.
You also have to have quite a thick skin - some parents either think it’s just like being on the PTA, others think you can fix everything!
I wouldn’t give up!