dont be a h0mo. Check if you need to.

I dont bother looking for leaks, maybe do that at home or something. Just use your spare tube and check the inner tire to make sure there is no debri. Find the hole preferably and check in that same spot inside the rim to make sure nothing would damage it. Put new tube in and use the co2.

I bring 2 co2's just incase i am a m0ran and screw up the first one. Pretty sure I'm going to start carrying only 1 co2.

The one time I got another flat after I screwed the pooch on the 1st tube, I just waited on the road until another cyclist rode by so I could ask for his help. Man up and ask for help, dont carry extra equipment cause you think you're a superhero. Most of the time I'm fixing my flats and like 5+ ppl will come by and ask me if I need help. Even while MTB'ing.

You can also ask drivers for help, I've asked a few for water once.