MISC. TIPS:

– As cleric, you can swap out spells during a long rest. This comes in handy if you're about to fight elementals and need the right kinda magic to beat them.

– With Vigilant Blessing, you might find yourself at the top of the initiative order often. Use this to buff your allies if you can (Shield of Faith) activate TS immediately (So everyone gets temp. hp) or cast something like Faerie Fire on a mob before your allies get in range of the spell.

– Where other characters measure success by damage/round, you measure it in damage, healing, buffing. If it annoys you that you're not doing the most damage then cleric won't be for you. So just remember: your success isn't based on the damage you do but the damage everyone else can do.

– The hardest part about being a cleric is that you have access to a lot of bonus action spells, and figuring out when to use what can be tricky. Pay attention to your allies, enemies, surroundings to figure out which one to use. Same rules apply for spells requiring concentration.

That's all I can think of for now. If anything else hits me I'll reply with another comment. One final thing though…

I've played almost every class in DND, and multiclassed into anything and everything. By far, I never felt as god-like as I did when I played twilight cleric.
True story: I was playing with a DM who had a hard time scaling the difficulty for our four-person party. We had around 6 player death's in our first three sessions. When my bard died, that's when I decided to try twilight cleric. We went from 6 death's to none. I don't know if anyone even made a death save after that. Morale of the story: twilight clerics are an absolute game changer when played properly.

Enjoy the game and if you have any more questions ask. Twilight cleric is awesome. Seriously. The worst part about it is that every class will seem weak after you've played it lol.