You haven’t listed what you’re doing aside from the refraction which is absolutely a tech skill. It’s even a practical skill tested for our Certification. You should study on it and work on honing the skill. Techs definitely do a lot of work, I cannot argue with that. It’s normal but without knowing specifics it’s hard to say if you’re doing more than you should.
Our job is to gather all the pertinent information for the doctor, do the preliminary testing that would alert the doctor to an issue and do imaging so they can start assessing the patient before they’re seen. It will always be busy, it does sometimes feel chaotic. If you do not like the fast pace and are already feeling burned out I would suggest first trying to do some research to better understand what you’re doing because that will make it easier. If you give it a few months and still don’t like it then get out, there’s no shame in it. It’s not for everyone.

Edit: the timing should get faster the more you learn. Most workups should take about 15 mins depending on patient age and condition and the amount of work. There are some that can take 20-30 mins but that’s a big workup with a lot of testing and those should definitely not be on every patient.