For computation my preferred tools are python and julia. Python is better suited if you think you will go in the private sector. If you plan on staying in academia, I think julia dominates. I could see Mojo overtaking both.

Available code

All code that I share online is available at my github page.

no HPC at your university?

No reason to panic, you can always rent computers from amazon. I highly recommend using the MIT project StarCluster. You will have your very own cluster within 15 minutes, and you can stop and restart it on demand. The EC2 service even has GPUs.