It's interesting that you mention being in a good mood while at church. Many report feeling better (moodwise) when having attended a service. Many also report a big shift in mood, for the positive, for having attended.

Do you find the good mood from attending church lasts long after you leave the church ?

Some people find the "good moood" lasts a few hours, others report it lasts a couple of days. Some are very involved, attending church services 3 times or so a week, and report renewing the reported "good mood" effect(s) throughout the week. Some people find attending church a trigger for various reasons.

Waiting can be very difficult and time can drag! Maybe keep yourself distracted and time might move more quickly and maybe you will experience less anxiety while waiting?

I hope things work out for you just as you hope they do!
Keep us posted!