It shouldn't be too difficult or onerous to do the risk assessments yourself. As has been pointed out they are only written evidence of common sense.
Follow 5 steps.
Identify the hazard, a hazard is anything that may cause harm, such as chemicals, electricity, working from ladders, an open drawer, etc.
Decide who might be harmed and how.
Evaluate the risks and decide on precautions. I was taught that to evaluate the risks give the hazard a number 1 to 5 5 being fatal and 1 trivial. Then give the risk (likelihood) a number 1 to 5 (the larger the number the more likely. Multiply the two numbers together and if greater than about 12 you need to take some precautions. If greater than 17or 18 then stop that activity until you can reduce the number by some precautions.
Record your findings and implement them.
Review as necessary.
I once attended a seminar where a very qualified H & S man did a risk assessment in about a dozen words on a flipchart. They don't have to be terribly complicated.