I am currently playing a level 9 divination wizard in a campaign and I am focusing on battlefield control. I am the only player in my group that values crowd control, and that's why I am focusing on it.
I've noticed that I am always holding enemies off with a concentration spell like web, hypnotic pattern, or wall of force. But then when it is my turn, I feel like there is no way to use a bonus action to do some damage at least and have a good action economy (besides casting a cantrip as action), because I want to keep my slots for CC spells.
Also, there is only one healer (a druid) and he is mostly focused on fighting, while I am way in the back line supporting. And a lot of enemies have fire resistance/immunity in our campaign, and most wizard spells are fire-oriented.
So I thought maybe I'd dip 3 levels into cleric and get heavy armor proficiency, healing word for healing, and spiritual weapon to have a good action economy and force damage, as well as some neat spells for my familiar.
Is this a good idea? What domain fits best to my playstyle? Is 3 levels too much?