I'm not an expert by any means but to build and tone requires upping your muscle and lowering body fat (to see the beautiful muscle) so calorie intake should go up. Start with a 50% protein, 30% carb, 20% fat of your calorie intake. Make sure you are always using weight that challenges you. Example.....if you can do 10 reps no problem you need to bump up the weight. Good luck to you! P.S. Remember to eat as clean as possible

I like gym machines (instead of free weights). They help you to keep proper form. I've done weight training on machines for over 30 years now.
Whatever you do, just find some kind of routine that you can manage and keep it up about 3x per week. It doesn't have to take a lot of time if you do high weight and a low # reps. I do 8 to 12 reps at the maximum weight I can handle-- and one set. Works for me and I don't do anything special with diet.

At my college, people over a certain age get to use the gym really cheap, and you get access to coaching and friends. If you're near a college it could be worth your while. I love learning about form and strength from the ladies at my gym.

@Kathy98513 if you can afford it, I highly recommend hiring a trainer to teach you some exercises specific to you and proper form. I’m 55 and I’ve always worked out on my own (biking, skiing, jogging). I started lifting weights a couple of years ago because I’m older now and believed I had better put on some muscle to help as I age and I was doing squats wrong and gave myself runner’s knee. It’s an overuse injury. Never had knee problems before. I’m working with a trainer now and it’s improving because I’m working on my weak muscles, not my too-strong ones. I had no idea on my own. If you consider this, my advice is to find a trainer that specializes in Functional Movement.