Answer : Landscape design is a great career choice for any passionate person. There are many books and articles available that you can find with little to no problem, but an in-person course or degree may be better for some people.
You can start by looking at the top landscape designers and thinking about their education background. You may find they have started as landscapers who progressed into the designer's industry, which is not uncommon at all. If you're not the best map reader then it might be a good option to go with an advanced degree or course on Landscape Design so your skillset will become more adaptable than just one area.