I would look at the fractures separately to healthy lifestyle motivation.
You can still lead a healthy lifestyle - you just can't exercise those fractures, other than any exercises that a physiotherapist or Dr has cleared you for.
You can still practice healthy and balanced nutrition, and in fact, with those fractures it is really important that you do so. Ensure that you are getting a good amount of lean protein, which will aid the healing, and getting a good amount of calcium in your diet, as well as the healthy fats and quality carbs.
At this time, I wouldn't be actively trying to lose weight, but certainly maintaining is a good idea so eating for maintenance is advised rather than eating for weight-loss.
Good luck - I hope that your healing is a speedy process.
How does quitting help the situation? You can lose weight with no exercise, so focus on your calories.
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