Find the actual gap
Most trouble in calculus is really unresolved algebra, and most trouble in thermodynamics is really calculus. I look for the thing underneath rather than drilling the surface topic.
One-on-one tutoring from a PhD chemical engineer and licensed Professional Engineer, covering AP coursework through the university engineering core. Formulas you memorize evaporate after the exam. Ideas you can picture stay.
Free, 15 minutes, no payment details. We talk through what you are stuck on and whether I can help. Sessions after that are $100 for 60 minutes, arranged directly.

24 courses across 5 areas
AP Chemistry · General Chemistry I · General Chemistry II · Organic Chemistry I · Organic Chemistry II
Python · SQL · Machine Learning
Chemical Engineering · Mechanical Engineering · Thermodynamics · Transport Phenomena · Fluid Mechanics · Heat Transfer
Precalculus · AP Calculus · Calculus I · Calculus II · Calculus III · Differential Equations · Linear Algebra
AP Physics · Physics I · Physics II
Most trouble in calculus is really unresolved algebra, and most trouble in thermodynamics is really calculus. I look for the thing underneath rather than drilling the surface topic.
Six years as a teaching assistant at RPI, and a teaching award in 2019. Knowing a subject and being able to explain it are different things, and plenty of people who have the first do not have the second.
We use your real problem sets and past exams. The goal is that you can do it alone afterwards, not that you followed along while I did it.
Tell me what you are working on and where it stopped making sense. If I am not the right person, I will say so.