Start with Andrew NG's DL course. This course is good for engineering dude. He doesn't dive super deep into the fundamentals but he helps you build minimum intuition to get the idea of what's going on behind DL. Reading heavy DL books at the beginning will make you feel exhausted.

You can also check out https://d2l.ai/ and video lectures for reference.

Also, if you really feel uncomfortable with all these DL library things __ init__super() thing with OOP stuff combined with tensors, Tensforflow, PyTorch and huggingface etc..., check out Andrej Karpathy's youtube channel.