One or both of the staged approaches mentioned above are a good idea.
Start with a raised bed (or two) and some large pots to see how the garden performs for you. You can gauge whether the sunlight is right, how much watering you'll need, evaluate the bug issues, etc.
There are very handy.
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You don't have to bend over or get on your knees and they can be wheeled into or out of sunlight, etc.
P.S. Nevermind how that link text displayed. It's to Amazon with various raised bed options.