Is 32 too old to leave my partner and start my life again?

Been with my partner 7 years. First 2 were amazing, exciting, sex was great, he was kind, funny, attentive.. everything you could want.

Past 5 years the relationship has been rocky. But for some reason we both stay.. the past 2-3 years the sex has dried up to basically nothing. I can count on both hands and 1 foot how many times we’ve had sex this year.. which is ridiculous. He never seems physically interested in me, he makes up more excuses than anyone I’ve ever met.. he tells people we’re married but we aren’t.. but I feel stupid for correcting him.. he tell me he wants a baby but he would rather masturbate alone while I’m at work or in another room ( walked in on him couple of times). He is miserable and grumpy, he is only 43.. 12 years my senior. He is very cruel with his words & is quick to have a go at me. Friends think he talks down to me and belittles me in front of people, trying to make me look stupid.

If I have an opinion on something or share my views he tells me to ‘stop overthinking shit’ ‘stop wasting energy’.

I’m a morning person, so in the morning I say morning, and once he has had a coffee I try to talk to

Him and he tells me to stop being annoying.

I don’t remember the last time he paid me a compliment or said he loves me without me saying it first.

I feel miserable but trapped. I am 31. Nearly 32.. I feel like I’ve wasted the best years of my life on this guy.. but I have no money saved as I pay for all the bills and rent and everything, he keeps his money to

Himself. We have 3 dogs who I adore, we’ve had 2 of them 6 years nearly and the other almost 5 years, if I leave he would get the dogs as I have nowhere to take them. And I feel heartbroken.

But what do I do?? My family hate him to point that my sisters won’t allow him near their children, my parents tolerate him for me but I know they don’t trust or like him.

I have no one to talk to. He has cut me off from my friends, family, even the career I loved I had to change because of him.

Am I too old to restart my life?? Has anyone ever been in this situation?