What’s your average deal size? Whats your rough base pay (i.e. if your base pay is £120,000 then commissions are less important)?
If you’re outside of London you should have the opportunity to earn £100k+ a year (more if you’re unlucky enough to live there).
If that isn’t the case I’d discuss your opportunities internally or look for other jobs.
Sales is hard.
To be willing to make the sacrifices to be successful in sales, there has to be a fair exchange of cash.