I’m sorry to hear that, and the last thing anyone wants is more stress 
Please don’t forget that you do not need to decide within the 4 days whether to accept an exchange request or not. You just need to make sure you reply - so a super quick “i’m a bit busy right now but i’ll have a think over the weekend and get back to you asap” is absolutely fine. Also the product team has just made an important change which you can read more about here: 🆕 Automatically Declined Requests Now Easier to Identify in Your Inbox Automatically declined requests will still remain in your unread messages inbox so members are less likely to miss these requests