If you teach yourself, you can't predict the study time, because no one can predict what kind of problems you will encounter and how long it will take to solve them. In the training institutions, there are professional teachers to evaluate students' achievements and personal abilities in real time, so that students can get rapid growth and progress, thus achieving employment in a short time.
The hardest thing to do is the depth of the work. How long does it take for graphic design to have no foundation, that is, artistic creation? Learning takes a lifetime. It's not just about learning software. We should learn all the things around us, improve and enrich ourselves, and how we can show ourselves in our work.
How to learn without any foundation?
There is no basic learning design. We should start with understanding this subject, and then learn the necessary theory and software operation basis of this subject. With a certain knowledge reserve, you can do some practical project output exercises.
Furthermore, design is used by people and serves them. So after getting started, you can try to put yourself into your work. It doesn't matter if you start with the simplest assistant job. The design put into production and operation is the valuable design.
In the following continuous work, we will continue to learn, summarize and share, constantly enrich ourselves, learn and improve, so as to further realize greater self-worth. This cycle is the way of learning.