Some random new girl in thr gym that i go to randomly started talking to me and asked for help with pull ups like.. To hold her up and the whole time i was fucking shaking like mad.the conv afterwards was a mess

I have no fear to approach any girl i dress well, hygiene and grooming on point, i work out and i have my own life... but rn after today I'm actually afraid of how my body will react after starting a conv with a girl.. And im afraid to approach from now on. How do I control the shakiness?