The whole aspect of aspiring to become the best in a field that we find technically challenging, regardless of what it says on our CV is largely predicated on the availability off good Role Models in the field, who wont look down on your ambition or level of competence when you decide to enter the field. There are good role models out there, but you have to search and find them. If you look at some of the popular programming languages of today, there are development communities around these languages, and invariably you can hit up a conversation with someone who is interested in guiding you , based on their time availability of course. The best way to engage top notch talent in your quest for technical proficiency , is to host a significantly difficult project idea on github, dabble with the code a bit, and post questions on related forums that will catch the interest of potential mentors . Try #FinTech , #GovTech , #EduTech or even a new and improved #WebFramework , or if you want to get really technical some #ProtocolStack or #DeviceDriver (thought the latter two might be more than a mouthful and a white elephant, unless it is being driven by a specific need in a specific business context)
What language are you looking to get proficient at ?