My house blinds are installed on my window mouldings, and today, one of the blinds fell off. I discovered that this was due to a broken moulding, which I believe is made of MDF instead of wood. I need some advice on the following:
1. What would be the best way to have this fix? Can I glue it back?



2. I realised all the other window moulding in my room and living room is showing sign of breaking too. If I would replace it, what would be the best method ?
Thank you all for your help and advice.