Are there breathing techniques scientifically proven to make me more awake?

Yes, there are breathing techniques mentioned by Andrew Huberman that are scientifically proven to influence wakefulness. One such technique is to inhale deeply and then exhale briefly, which, if done repeatedly for 25-30 breaths (a big inhale followed by a short exhale), gives rise to increased heart rate and an adrenaline release, making you feel more alert, as if you had a cup of espresso 1. This technique can be immediately utilized to increase wakefulness.