Squad Lead feels so Overwhelming

I have about 150 hours in Squad, I absolutely love the game. I've been learning to play SL more and more as of late, and I feel I have communicating with and ordering my squad around down pretty good, but when it comes to talking to other SLs on Command chat, my own squad, AND any teammates around me in a firefight it gets to the point where I panic some and get confused/overwhelmed. Is this normal, what can I do to help with this? Also, when one SL is asking for my squad to do something, another SL asking for something else, what do I do? Which SL do I listen to?