Play whatever is fun for you. Simple but true statement.
There's a common misunderstanding in D&D that every group has to be optimized so everyone compliments everyone else. If you don't like casting bless, do something else. Seriously, you'll feel better. It's not much fun when you're waiting for your turn to roll around, and the barbarian rolls d20 x2 (reckless) + damage dice, then again for Extra Attack, and then someone else does the same, and then the Moon Druid shapeshifts into something cool and does the same, and you simply say "I cast bless." No dice rolling, no tension (OMG, the battle is close, will I hit), just a declaration and you fade into the background for combat.
Some people are cool with this. They contributed to a successful combat in a way that doesn't get recognized. But if you're bored with it, do something else. Odds are at your levels, several of your gamers aren't missing much anyways with reckless attacks. Clerics have awesome options. Finally, in a good D&D campaign, it's not all about combat. Clerics have an amazing repertoire of spells that can allow you to solve nearly any situation. See if you can think of some creative use that might bypass some combats (e.g. speak with dead on enemy sergeant to learn their defensive layout and so on). Gives you a chance to shine in a way others can't.