Some tips, you can apply to any armor pvp BS, some valids for the kronos other not.
More tanky: with an active fit, use an exile booster. With an passive fit, sometimes a +1 +2 pg implant makes you able to reach a noticeable better fit. You have asklepians/slaves for god mode tanking. For 1 vs 1 an Reactive armor hardener can give you a interesting resistence boost over energized hardeners.
More DPS: bad news are that in a armor ship, dps vs tank work opposite, more tank, less dps, find your balance, add or remove magnetic field estabilizers.
Cap: If you already have one cap booster fited, try to add a cap battery to your fitting. Fiting a nosferatu can help too, if there is ships bigger or the same size than yours it will help.
For killing frigates and other small ships, a Heavy neutralizer + a small drone set ( warriors or acolites, hammerheads ) works quite well, will keep those little bastd. outside of 30km range. Smarbombs are better to kill drones, which is not bad too. Those mods are cap hungry modules, use with care.
As the other guy says, fly cheaper ships for learning pvp, and keep the kronos for farming till you feel confident with T1 BS. I would recommend cheap cruisers to start your pvp carer. You are goinf to loose a lot of ships to learn. Loosing a ship is gainning an experience/knowlege under your belt.