IF you took one class, you probably will have difficulty. It will take more than one time to sufficiently use the computer. Learning this requires patience and a willingness to change and learn. How much willpower does it take to change one's eating habits. It's a lifestyle change.
Any habit requires effort to change.
It's easier for some than others. Some people make up their mind and they will do it, some people need time and help. The same is for weight loss. Losing weight to prevent diabetes or heart problems like family members, these are more long term reason. You will be more highly motivated with these long-term reasons.