Best advice I can give ya is to finish your main story quest line with king mog, levi, ramah, ect. so you are caught up on content for 2.4.

For gear I wouldnt worry about that atm since 2.4 is roughly a month away atm so the gear now wont matter once thats out but you can still earn a few pieces of weathered gear (soldier tomes) and syrcus tower gear (ct 2nd stage) to close the gap in difficulty when the new content comes out.

As for relic you will have to do the atam quests I am guessing....... good luck with that, your relic will take you awhile to catch up on. It will be a very long grind.

Best to find someone from your server or a LS that will assist players with info and ask when needed, best way to figure things out.