For the oral, you need to continue to study, for my instrument, it went about 9 months or something like that after a took the written before I was ready for my check ride. I kept studying after I passed the written, and taking the practice tests. You should do the same for your ppl.
I was at a focus group a few years ago, with about 25 other pilots, with varying experience, but all had more experience than me. One of the questions was how long after you got your ppl, did you become really comfortable getting in an airplane and going flying. The consensus was about 40 hours after passing the check ride. I was shocked, all these great pilots felt the same way I did. Just keep that in mind, apprehension and butterflies are normal for most pilots before a flight.
Finally, during my instrument training I hit a plateau. It went on for a while until my instructor kind of figured out what was going on. He told me perfection is great to strive for, but no one really gets there. He told me about a couple of his experiences where something he did wasn't perfect. He told me the most important thing to do is fix the issue then move on. This is important, for example, maybe you landed a little hard. Figure out what happened, then don't worry about it, move on. I stopped getting ticked at myself when things weren't perfect. We would debrief, go over any issues, then address them next lesson. Once I figured this out, my check ride came quickly.
The goal is not perfection, the goal is being safe, both in ability to fly the airplane and decision making. This is what the DPE will look for, not perfection, but safe, sane, proficient flying. Once you get the ppl it is not the end of the learning journey, but the beginning.
So lighten up, stop counting hours, you are no where near taking too long, you do you, give yourself a break. You are at the point where everything just starts clicking. It may take 5 hours, it may take 20 hours. Meanwhile, trust your instructor, if he says you fly well, you fly well. He'll correct you if he needs to, trust him.
Get out and fly, amp up the book work, but more importantly, keep taking practice tests. Review the material for the answers you get wrong.