Hmm I can maybe understand why you think you’ll be a mid level dev without putting in hours.. you didn’t mention your location so not sure.
But why in the world can’t you afford to change jobs? Plenty of places need mid level devs and it doesn’t cost anything to change jobs.. in fact they usually pay you more.
The company I'm at requires longer hours for promotions (unofficially of course). I worked as a tech lead and the a senior dev a few years ago. They wouldn't promote me unless I worked at least an extra hour per day.
That system ended up being outsourced and I had to get a new position at the same company. The tech was obscure (FileNet) and thevonky other position I could get was in equally obscure tech (Neoxam). There I became the ASC for the system across 6 teams and two departments - a role typically reserved for senior devs and above. Then they cut the budget in half and did some stuff that I didnt agree with and wouldn't want to be responsible for the security of. So now I'm on a team with modern tech (AWS). It still feels like extra hours are required and they also expect me to be an expert in multiple stacks/systems simultaneously, which is tough. I also feel like, what's the point? The company keeps breaking their own policies and my expertise is just throwaway in their eyes.
Once I become an expert in AWS (which will take a long time the way the work is structured) then I can maybe switch companies. It's still a risk since I have a family to support and I'm responsible for basically all the bills.
But why in the world can’t you afford to change jobs? Plenty of places need mid level devs and it doesn’t cost anything to change jobs.. in fact they usually pay you more.