You've learned the basics of Numpy + Scipy. There is a huge number of other packages to explore.
Example:
PyCVF Computer vision library for image analysis
HOOMD-Blue A computational chemistry program writting in Python
You can continue to use Python. As you become more professional, you should switch to using $\LaTeX$ in your homework. Use https://www.sharelatex.com/ as place to write your Junoir Lab assignments or do your heat transfer class. Make your graphs in Python and do calculations, then place them into your LaTeX files.
If you liked the distributions/hypothesis testing units, this is the class for you! You'll learn quite a bit more depth. If you prefer learning at your own pace, this Udacity course is a nice companion to the course you just took.
If you liked the probability and model construction (regression) units, than you might like machine learning. There are many many online courses for this (Andrew Ng's course is the most famous online one) and most of it is done in Python. A hot field and I recommend digging a little bit into it
If you want to make website and make brazillions of dollars, continue learning HTML/CSS/JS. Learn to use Bootstrap or Foundation and make your first online business. Learn to write in AgularJS and grab a job tomorrow. Make the first thermodynamic property website, where people can look-up viscosity values without using a textbook. Phone-Apps can be written using the same tools as well
Now that you can programm in Python, you are positioned to be a top student for research both here and at other universities via REU programs. Apply for summer research and ask professors about research. I've had two past students get REUs due to Python knowledge. You are way ahead of the curve in engineering.