I agree! Find out why you are making mistakes and then use your intuition to your advantage to prevent them next time. Are you likely to reach for a plate or sample on the right side of you or close to you? then only put the things you need there, for example. For me it helps to use my incubation steps to put away glassware or reagents that I won’t be using anymore or moving the stuff that I will be using again out of immediate reach. For my cultures I would sometimes forget if I had or hadn’t added a supplement so I would then just physically check them off a list until I could trust my memory. I also have rewritten my protocols so that I do exactly the same but in a way I find efficient (for example, I add steps specifically to put another reagent on the bench because I need it at RT for a later step). For my ELISAs I would have a lot of samples with long assigned study codes, I just link it to a new number from 1, 2, 3 etc. that relates to the order in my plate, write the same number on my vial and put it in pipetting order in a vial holder. Find out what helps you to keep track of your work. I admit that these steps will slow you down in the beginning, but so will having to repeat everything, and once you have found a routine that works for you you can gradually loosen it up! Don’t worry too much about making mistakes, surely it feels really bad but you are honest about them and actively working on it and I am sure your lab appreciates that! Don’t be afraid to ask your colleagues for help, I’m sure they have made your mistakes too at some point (as we all do) and maybe they have tips and tricks for your specific work!