"... I've basically had it with failure after failure. In fact, I'm sick of computers altogether ..." You lack determination. It might also be your approach.

"... I've basically had it with failure after failure. In fact, I'm sick of computers altogether ..." You lack determination. It might also be your approach. Woz advises youngsters using computers to get some form of immediate success to avoid the negative feedback loop you describe. So carefully look back at what you are doing and see if you can choose projects, problems that have a quicker positive pay-off. Choosing to do pharmacy does not necessarily mean you will avoid computers.