Learn Signal Processing 101 in 31 lectures covering time, frequency and Laplace domain in about 8 hours all together:
https://www.youtube.com/watch?v=tPVduVtOJac&list=PLJ-OcUCIty7evBmHvYRv66RcuziszpSFB&index=1
Learn coding in the most intuitive way:
https://www.youtube.com/channel/UCh9nVJoWXmFb7sLApWGcLPQ