Lifting equipment? 28w

Kim • From UK 🇬🇧 relationship since 2010 🎉🔑🌹👫 want a big family currently 👧👦🏼👶🤰👨‍👩‍👧‍👧
I'm 28w and work in a hotel. Now I've been told by someone who does my risk assessments not to lift anything at all. 
Then my manager says it's the most ridiculous thing he had ever heard? 
Can anyone tell me what the lifting rule is?? 
Thanks