Hi Chel and welcome. You're being too harsh on yourself to expect to take 'it lightly'. Impossible, for all the important reasons

What we're trying to do is complicated, full of hormones, natural emotions, big-time loss of privacy of what should be a natural and private moment with DH. The term 'roller coaster' us used a lot and it's 100% accurate.
My advice is to prepare your body as best you can. Read some of the excellent books (Zita West amongst others), take control of your nutrition, exercise, diet etc. Feel that you're doing all that you can. Help DH get ready too, if you've 3m before tmt you can directly affect the quality of his side of the deal. Next, I'd say as soon as you know when you'll cycle, join the monthly buddies thread over on the General Forum. People group together according to when they're going through tmt, usually at least 1-2 months in advance and shart sharing thoughts, worries, laughs and support. You then stay chatting together all through tmt and into the 2ww. It's so much easier to do this with women going through the same procedures.
Good luck and hth
Debra