If you’re discussing Savage raiding, then you should take baby steps first.

Familiarize yourself with the job you wish to raid on. Learn its rotation and practice extensively on a striking dummy until it’s muscle memory. Damage, more or less, doesn’t matter in most content—but it will matter in Savage raids; so you want to make sure you have a good understanding of how your job plays to meet the damage quota.

Second, familiarize yourself with proper gearing techniques. For Savage, you will want to keep your gear as updated as possible. Right now, the best there is outside of the new Savage/Tomestone gear is the i480 Neo-Ishgardian set. It is essential that you have this gear for tackling the newest Savage raid. Melding it will also be important. Generally, you can find out which materia your job prefers by joining a discord like The Balance, where they post resources like this. They also post your Best in Slot (BiS) sets for each new raid tier. BiS includes proper materia melds. Generally, interim gear should also be melded.

Third, since it seems like you haven’t tried any high-end content in FFXIV yet, start going into Extreme trials. They are harder and more demanding that things like dungeons, and they will also introduce you to dealing with punishing mechanics and enrage timers. You will want to get used to EX before going into Savage, as Savage is harder and more demanding. I recommend, after gearing yourself, to join some EX primal party finders. Start with learning ones. Focus on learning the mechanics while simultaneously dealing damage. Don’t get discouraged if you get killed or mess up. It happens to everyone.

After you feel comfortable enough in EX trials, then you can start tackling Savage. Savage is fairly puggable in Party Finder, so do the same thing: joining learning parties and practice the fights. Do not join a clear party until you have at least been to enrage a couple times, and feel confident that you understand the fight and the mechanics.