Can i create my own neural network model from scratch and use it fir transfer learning? • r/MachineLearning

Yes, that is what transfer learning is. Although 8 conv 4 fc is a little unusual. You might be better off finding a pre-trained, tried and tested convnet architecture like VGG or Resnet and save yourself a lot of work. Most DL frameworks provide some kind of "model zoo" to download pre-trained networks.