I've been at my current workplace for just over 3 years. It's an extremely male dominated environment but I get on really well with my colleagues and the shift pattern suits me from a work-life balance perspective at this stage in my life. Unfortunately my attitude to work hasn't really been that great for a while now, partly due to mental health, but mainly because there is no ladder for me to climb and I am beyond bored in my current role (very repetitive, every day is the same type of job). I'm also the highest educated and lowest paid in my team (different roles and I'm 3rd party whilst their employees so that's not a gender issue) and they messed me about a bit for the first 18 months or so. All that combined basically led to me not being the most pro-active, 'go-getter' type of person. I did always do my job though, just nothing above and beyond, and often made off-the-cuff comments like "I can't be bothered", I'll get round to it at some point" kind of thing, which unfortunately has now given me a bit of a reputation for being lazy.
A couple of months back I decided to try turn things around, with the goal of making a sideways move into one of my team-mates roles (a few are retiring/moving on over the next few months). This has involved some course work and exams (at my own expense, about £1200 at this point) and I've been putting extra effort in to get my own work done efficiently to free up time to shadow my team mates. The role is also more in-line with my degree subject than my current role too. Despite my best efforts, no one is really taking me seriously or even really noticing the effort I'm putting in. When I've mentioned my goals to my superiors they've kind of nodded along but when I require action from them (e.g. signing off my competency paperwork) they drag their heels and I have to nag to get it done.
I know it's only been 2 months of pro-active vs a year+ of poor attitude and these things take time, but is it actually possible to turn things around or will my lazy reputation just stick forever at this workplace? Has anyone managed to turn their reputation around and climb the ladder? If so, how did you got about it?
TL;DR: Had a poor work attitude, trying to turn it around and progress but lazy reputation has stuck. Is it possible to turn it around, or do I have to move on and start a fresh?