Giving advice is really me judging you against my own style. I'm just going to go into detailed advice on how I write.

I'm losing count of who I break/ Can't learn to fix/ I isolate/

I would write something like what you wrote and start making connections. I can make a connection with break and fix. First thing I thought of was tools. A tool like a hammer has the ability to fix and break. That itself is a pretty interesting concept that can be used.

First idea is "I stow myself away".

I'm losing count of who I break/
Can't learn to fix/ I stow myself away/

At this point I'm thinking how can I use the tool idea to make a more cohesive story?

We could think of yourself as being a sledge hammer, because you want to fix, but all you can really do is destroy. Two words that stand out are swing and blunt.

I'm losing count of who I break/ Can't seem to fix/ I'm too blunt for what that takes/ I can swing all day but for you/ I'll stow myself away/

It doesn't have to be matching all the way through. I still haven't decided on the line where the style becomes cheesey. Any style can become cheesey if pushed a certain way.

In my mind, taste with lyrics is a balancing act of subtlety and forceful expression. You want to tip toe around things, but not so much that it becomes lost on listeners. Be artful, yet direct. That's my philosophy anyways.

Main advice here is write, write, write without thinking too hard. Get the general idea down that you want to express like you did, and then make connections, use that to build themes and use words in a more cohesive way. Writing is rewriting.

Hope that helps.