GREAT advice so far from the other posters!!! As a recently turned 45, I can echo that I too am in the best shape of my life, certainly better than I was even a year ago or more. Vegetarian for nearly 13 yrs, vegan for 3.
Didn't have anything immediate to comment on your sample daily menu above. Would wonder what was in your salad? Lots of spinach and kale, some beans hopefully, etc.. I'm no nutritional guru for sure. A variety of foods in your daily diet would best ensure you're getting all you need. With good mix of leafy greens, legumes (haha!) and such you'll not need to worry about whether or not you're getting enough protein....a well mixed plant based based diet with sufficient calories will be more than good for you.
As you're just getting started, realize that somethings might be easier to do. Others quite hard, and some just awkward. None of us except the naturally gifted were good at everything from the start. Get a notebook and journal your path. Log in what you ate, how you felt before and after, and what you did. Cardio will build over time..start with a goal (around the block, or 20 jump rope reps, and 5 push ups, 10 squats up/down using a kitchen chair, whatever)...then as you log in what you were able to do, in a week my might push up your targets to 6 push ups, or 15 squats, etc.
It's motivating to see improvement. THings you have trouble with our questions on just ask on here.
Aside from adding in specific weight stuff, you'll have alot of the basic tools just using your own body. Variety of types of push-ups, pull-ups (can recommend some elasto-bands if you like as may not have pullup bar handy -- hooks over a door), dips, squat jumps (plyometrics will become your friend - combining multiple exercises into 1), interval training. I'd maybe suggest you can move towards, if not achieve your goals JUST by using what you got...yourself.....
Oh, also good to take measurements of your body at the start, and then again in 3 months or so.....chest, arms, waist, thigh, etc...progress markers!