Is it the pens you had specifically? If so can you not ask for vials and syringes if you find it easier? As for changing needles, I’m on MDI and have a minimum of 5 injections a day and more if I need corrections. I never change my needles after each dose I try and remember to change my novorapid once a day, levemir is more hit and miss and probably ends up a couple of times a week. I know that some people think this is mad but I don’t have the time or the inclination to do it more often, I just don’t tell my diabetes nurse! Also all pens are not created equal, the disposable ones are pretty light weight and the cartridge ones ;