It is also because you attach too much importance to this wedding that you are nervous and afraid of making mistakes, which will lead to an incomplete wedding.
Actually, there is no need to be so nervous. Find some married and experienced sisters to help you arrange it. Now that parents and elders are in charge, there will be no problem. You just need peace of mind to be your happy bride.
Don't let this make you unable to eat or sleep. On the contrary, it is mental degradation. At the wedding, you should keep your best and be the most beautiful bride.