Perhaps some people can give you some useful advice if you narrow what you want. For example if you know python and want to develop web applications the next step seems to be to learn django and flask, you could develop a small application and show hear in hn asking for feedback or ask in stackoverflow questions. All of this are easy ways of learning things. For you to get a mentor I think you should learn the basic things and then ask for something more concrete. Just my two-cents.