The cards have nothing to do with your light level, so let's just stick with that for now. What pinnacles are you going after? Remember that they drop in random slots, which sucks believe me, but there's nothing that can be done about that.
I just looked at your Hunter (sorry about that but it'll expedite things) and it looked to me like all of your gear is at 1810, which is the pinnacle cap. All you can do from this point is grind experience to raise your Artifact level until you reach 1830. Also, I glanced at your other post, and you don't [i]need[/i] to be at 1830 just to complete a Lost Sector, it's only a recommended level.
When do you think you will be next? If you like, I'd be willing to hop on and give you a hand getting set up to run a Lost Sector, even make a few practice runs with you.
Okay, I'm usually available from 11 am your time on so if you see me logged in just send me a fireteam invite; if I'm not logged in I'll make sure to have the forum pulled up and you can simply send me a private message, I'll log in, and we can take things from there. Do you have a mic?