Don't get caught up in wanting to pile numbers on quickly. you will fall into a bad stump and potentially get injured.
Remember, the biggest display of strength is perfect form. Once you nail that, numbers will come. It takes time, you may only squat 175 by the end of the year, maybe in a few months. It all depends on YOU.
Are you doing squats after leg presses?
If so, cut that out right now. Do squats before leg presses. You'll find you have more energy.
In terms of improving strength, try doing some assistance work revolved around your squats. Post up a video of you squatting, once your weak spots are recognized you can get a suggestion of lifts to help strengthen your weak spots.
Ex. i started doing Bulgarian Split Squats because of my few problems in my front squat.
Hope that helps.