When doing a workout routine, do the best you can. As time goes on, the exercises will become easier to you, and you will be able to do them with better form. Look for workouts that have Casual on them. Congratulations on starting on your path to better health.
You should struggle because otherwise nothing's happening, but as a beginner I feel you should have to struggle only to a certain extent. If it's too much of a struggle there's a higher risk you give up.
Start on the casual level and with shorter workouts. Concentrate on form rather than reps. Modify the exercises you can't perform, but try every time to see if today's the day you make it. Suggestions: elbow and/or kneeling planks instead of full planks, kneeling push-ups instead of regular push-ups, taking a few seconds of rest if needed and then going at it again. Still, you will need to keep pushing yourself, so rather try a full plank and then go down on your knees if you need to, instead of not trying at all. As you feel yourself getting stronger, step it up a notch. Both cardio and weight training burns calories and it's recommended to mix the two. Remember you CAN NOT spot reduce, so doing crunches just to get rid of belly fat will get you nowhere. Work on your whole body instead of concentrating on certain parts. If some part of your body is weaker, you can focus a bit extra on it.
The best time to work out is the time you do it! Some people say in the mornings on an empty stomach will burn more fat, others say that it's not true. The important thing is you do it, not when.
Hi Sharon, I can't reply to your message unless you follow me. It's because your account is set to private.
Anna, hi again. I've followed you. Don't know why it reset. If you follow me back (I keep my group small on purpose), then you can reply directly via message. This gets around the issue of making a profile public.
Be patient, keep working even if your not trying your hardest , there will be a day you will want to challenge your self , and from there you get into the exercises.