It's okay to lose your metaphorical heart, or to break it.
You can sooth it up with art supplies and warm drinks. You can dive deep into the cracks to find out what's tearinig it apart.
You can do some kintsugi and patch it up with gold. Fill the cracks with gold and see the beautiful design that life carves into it.
You can also just make a new one. You can explore new things, new people, new places. You can graft the remains of your old on onto these things, and grow a new one.
Or you can borrow one, because some folks have extra to spare. Take a little into a bowl, feed it love, and watch it grow like friendship bread.
There are a lot of ways to take care of your metaphorical heart, and you can always choose a different way if you feel like it.