You have at least a year of training left before you waste your time and isk in a capital ship. How many of your support skills are trained to level 5? You feel that railguns suck- it’s because your gunnery support skills aren’t good enough. MP:V + at least a 3% tracking implant is basically mandatory to get a reasonable hit rate vs player ships.
At under ten mil sp I’d stick with flying frigates and cruisers. I felt BSs weren’t very effective until I had hit ~30 mil SP; had maxed core fitting skills (including advanced weapon upgrades 5) + the ability to fit T2 tanking and damage mods, and at least skill level 4 in each turret support skill. Caps may seem easier to fit due to the huge amount of cpu, grid, and cap they have, but the reality of the matter is they require the most amount of SP to be effective out of any ship size.
You fly caps when you have the SP and are a member of an alliance that can actually fund your cap, as it is generally an alliance asset rather than a personal one.
I know I seem like I’m shitting on your dreams here, but I want you to understand your toon still has a fuckton of training left till you hit your goals (at least a year without injecting), so it might be a better idea for you to plan your training so you also have some common fleet doctrine fits you can fly effectively while you wait for jump drive skills to finish cooking.
If all you want to do is fly dreads (I felt the same way ten years ago), train for the naglfar; due to citadel warfare and void bombs being the meta you will want a dread that can still fire on an empty capacitor; which leaves the naglfar and the phoenix, but the phoenix sucks ass, so it really just leaves the nag.
Ten years ago I felt the same way you do; I wanted to fly dreads. A few years in, I realized I liked flying frigates and cruisers a lot more than flying a BS in fleet operations. If you are in a larger alliance, see if you can pilot a BS on a POS/citadel bash as it will give you some idea as to what being a dread pilot is like (being a f1 monkey shooting at large immobile objects). If it is fun for you, cool, keep training for dreads. If not, then you can do the same thing I did and just focus on subcaps.
You can fly every t1 cruiser at a max skill level before you can fly a single capitol ship with imperfect skills- think about it for a while. I think one of the reasons I’ve lasted so long in eve is because I can fly every single subcap with maxed skill levels so meta changes can’t reasonably bother me anymore.