2. Now the IT industry has a good development prospect, and there is no offline systematic learning. You can consider online learning, excellent employment, online video, written materials or basic books, all of which can be studied.
Don't worry that you can't learn when you are old. When you work hard and give, you will get something back. If you learn well, you can take an extra part-time job.
4. Programming can be considered, and so can Internet marketing, as long as you determine your interests and take time to study and practice.
If you are going to cultivate sentiment, learn to play the guitar. It is easy to learn and easy to carry around. I don't recommend it if you plan to earn some extra money after work. If you have time, you should study work-related knowledge. For example, I work as a website. After work, I will also be involved in server management, router, network construction, network maintenance and other code programming languages, so that I can go further.
There is a lot to learn. If you like computers, you might as well learn software development or something. If you like photography, you might as well learn the art of digital imaging. You can take photos, take photos and make your own works.