<p>Do you have a study partner or group? I’d highly recommend finding or becoming part of one if you aren’t already. Having another person clarify concepts you don’t understand may be beneficial and you can also learn or solidify knowledge by explaining concepts you understand to that person. Besides that, invest more study time, ask questions in class, visit your professor(s), etc. Learning is an individual experience in a collective setting.</p>
<p>Another thing, like jwxie mentioned, internships, REUs, and other practical endeavors are very important for technical careers. The practical experience may be hugely beneficial in certain situations.</p>
<p>Note: specific to your pre-calc class, it might help if you think of logarithms as the inverse of exponents. An exponent makes something bigger while the logarithm “returns” it to its original state. Continue practicing, practicing, practicing as many problems as you find and try to break down each step you do so you can understand how those steps work and how the bigger system works.</p>