When you push your solo 150, you'll want your worn gems at 150 already, and your augments in the 140-150 range.

Again, stick with the support roles, but pay attention to the behavior of the dps, 'cause that'll be you when you go for your solo push.

you'll also need to play in the push meta, to get your worn- and augment gems up higher.

Make all, so you have more of a chance to play. Since you're probably behind the paragon curve, stick with the support roles - zBarb, zDH, zNec, zMonk.

to get these, you'll need to grind a speed meta for XP and initial gem leveling.

you'll need high-level augments on optimized gear.You'll need to understand and leverage the mechanics of your build.You have a lot of choices, including Wastes ww/rend.you'll need a class and build that's capable of both the damage and survivability at that level.

Now that you want to hit 150, it will require a LOT more investment on your part. Anyone can bang out a GR100-110 with most sets, no augments, and under 1000 paragon these days. You've got a loooong road of grinding and learning ahead of you. Here's some advice I posted a few months ago, in answer to a similar question, but updated for S24:

Diablo 3 season 17 strongest builds