I know how to play the C7 chord, but how do I get fluent at switching to it from other chords?

Should i keep playing it repeatedly?

Play a chord then switch to it?

I'd like to be fluent to it from all chords, which is why ^ seems like crap to me...

thanks in advance.
Blackstar HT-5

Agile AL-2000 with Chrome Hardware
Just practice switching between the chords and it will come to you. Learn songs that involve using it and switching back and forth between chords. Start slow and build speed
Then there's this band called Slice The Cake...

Bunch of faggots putting random riffs together and calling it "progressive" deathcore.
Stupid name.
Probably picked "for teh lulz"

Mod in UG's Official Gain Whores
play songs with the shape in there constantly. maybe some jack johnson. pretty easy going and he uses plenty of 7th chords in a few variants.
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Play the C7 chord, feel how it feels there, then SLOWLY and consistently change to another chord. Do it really slow, then start speeding up a little bit later on.