Question: After graduating from university in the UK, I have heard multiple careers advisors say that it is inadvisable to leave your first career role before you have gained at least two years experience.

However I feel my current role is currently holding back my career progress as I am unable to properly learn industry standard technologies, and is affecting my health due to unbearable amount of stress caused by poor management.

I have worked nearly a year and a half at this company but it is still my first career job. Will this look bad to future employers? I work in a sector that currently has lots of job opportunities.

Answer: 
If someone is willing to offer you a better job, then you should take it. However, you need to make sure your next position is better.

> 
> unable to properly learn industry standard technologies,
> 
> 
> 

Be a little more diligent during the interview process and ask questions not just about what they use, but why they use it. Do they offer training? What processes to they use and how will you know if they really follow them? Are there good mentors?

> 
> and is affecting my health due to unbearable amount of stress caused
>  by poor management.
> 
> 
> 

This is going to be difficult to make sure your next job doesn't have poor management or something else you're not able to cope with. Maybe there are some telltale signs you've discovered in this job that you can recognize in the next. 

You should consider networking with other developers in your area and get some inside information on how various companies and teams operate. You may find that most have problems in one form or another, so why hinder your career by leaving a job too soon only to take another one that is just as bad.
Don't worry about it. If you receive an attractive offer take it. Lots of people are unhappy in their first job. But be careful not to just jump from one position to the next one that is slightly more attractive. Think about what you want and try to find a position that matches.