I think you should have never hybridized on your main in the first place, but for the love of god, do yourself a favour now and start levelling a new character. Cavalry becomes viable and fun very early, especially with double xp and OP banner stack you can level it to 25 in a few hours and from there on out it is fun. Infantry becomes viable and fun on Siege at like level 18. I have 4 characters that are over level 32 and it is simply awesome to be able to play anything I want, whenever I want, with great pure builds to boot. It's really what has kept me playing for the past year.
Seriously, if you have respecced multiple times, that simply means you need variety in your builds and the only way to get that without the pain of crappy hybridizing or sour respeccing, is by levelling multiple characters. Sometimes I wonder why nobody seems to think of this. ''Lancer build with good enough agi to play siege as well''. No, don't, level a focused lancer build and a focused siege build. It doesn't take much time because at level 30, your seperate builds will be better at what they do than your hybrid will be at level 32.