Can I install Tensorflow and Keras on Cloud?
I think your best option is to use the cloud, since your PC is not capable, and has limited resources.
You can set up a Google Colab or Kaggle account to run Jupyter notebooks online. They will support most libraries, including Tensorflow, Keras, and Pytorch. Both will also provide limited GPU resources.

Google Colab has a free version you can use, just need to keep an eye on your usage.
Kaggle is free, you don't need to enter a competition to use the service. Kaggle also has discussion boards and public notebooks to look at for ideas.