I would really recommend pumping insulin and this site too. My dsn was not so experienced with pumping and when I had questions she couldn't answer I'd put them up here and would get a nearly instance response. One of the dsns was very good in showing me different sets and how to insert when I didn't get on with the initial one. Apart from that it is just a lot of hard graft on your part whether you have the perfect dsn or not.
I find a pump mentally a lot more exhausting because you are increasing the variables that you can alter and adding a load of new ones (set and mechanical failure, site location, rising insulin temperature to name a few....). Has your consultant recommended taking a pump break? They're not so common here but apparently in the US they recommend that everyone spends 3-4 weeks on a pump holiday each year. It helps your sites take a break but more than that it helps you take a break and remember what life was like pre-pump. Last year I took a break for 4 weeks and was very grateful to go back. This year the break lasted 4 days before I had enough and went back to the pump.
Have a look at the threads on here in the pump forum and see if that helps you work out what it is you're finding so tiring at the moment? Is it setting a correct basal rate? Is it using the different bolus settings? Is it set insertion or variable readings after set insertions? Is it that your numbers are too high or too low?
As you will see the usual advice to any pump question is check your basal rate. It's boring, a pain but essential. The easiest way to do this, if you can afford it, is get a libre for 2 weeks as it makes it much easier. Some hospitals give an initial one away for free so it's worth looking into.
As you will also see everyone goes through ups and downs and seemingly random changes of basal rates and carb ratios. If you are organised (I'm not always) you keep a record of this and can tie it up to other factors e.g. change in season, major events. There is a lot of trial and error but if you value the freedom and flexibility a pump can give you it is worth doing. If you preferred what you had before then that's a choice too.