I’m semi-new to valorant and I’ve unlocked most of the agents except killjoy cypher astra and harbor. Should I unlock these agents because I think they aren’t very good and I would rather unlock agent skins?

i need help. Whenever i go into a match i spend about a minute on a loading screen then get kicked out and get a penalty. On the rare occasion i do get in i am on the agent select screen but with no agents. What do i do?