I played very little of valorant and I'm really bad. I panic when shooting and using my ability. What agent is easiest for begginers and how do I stop panicking?

Title, if none of my team can buy but force spectre light shields etc is it better for me to save to be able to buy the next round or just force anyway with them to have even eco

I feel as if this issue doesn't get spoken about enough considering how big of an issue it is. I have noticed that people with 44-72ms ping are extremely hard to shoot unless they are standing completely still, does anyone else notice this?...