Yip I've not been dating/in a relationship/had sex since 2014 when my last relationship ended.
I thought I was taking a break for a year or so (which I needed cos I had broke up, moved house, started a new job so lots to cope with)
Then one year turned into two as I bought and renovated a house.
Two turned into 3 as I dabbled with buying and renting flats in a sought after city.
Year 4 my dad got ill and I moved to help with him.
Year 5 dad died and mum was sick by then. Got told she didn't have long but it turned into 4 years of being a carer.
Like you I put on some weight, didn't have any time or interest in dating whatsoever.
However here I am 11 years later with folks dead, estates sorted and getting myself back in shape/making best of myself.
Like you I'm terrified at the prospect of getting back out there. Plus I'm in my fifties now so that brings it's own host of problems.
My goals for the next 12 months is finish losing weight, look after hair and skin better ie try to make most of myself physically. I'm also doing therapy for my mental health.
In 12 months I'm planning on moving house and I reckon I'll give the dating sites another whirl.
I've decided to do both alongside each other so that I will be focused on packing/viewing/moving and so won't put do much importance on the dating side.
i don't work anymore so I should have time to do both.
My priority will be to sell my house and buy another (within same area) but the dating thing still terrifies me.
If nothing comes of it then I guess I have not lost anything and I'll feel better in my new house regardless (not terribly keen on the one I live in at moment).
Another scenario that has crossed my mind is that I must be in peri at moment but no sign of periods stopping. If my sex drive dies a death then I might just not bother at all and perhaps just join some meet up groups to socialise a bit more and/or get more pets.
It's a tricky one. I can 'explain' my long gap if anyone asks so I suppose there is that. If you have other things you have done I would just use that to explain the gap rather than mentioning your weight.
Dating at any age is scary but this feels terrifying even though mentally I should be in a much better place than before.
I wish you luck whatever you decide.