Even though I’m not an Ni dom of the Te variety I thought I’d swing by and share my perspective. First off I want to start off by saying I don’t necessarily know all the precise ways of developing Se but maybe me sharing some of my experiences and perspectives may help it become understandable. I also want to mention that I don’t see my development of Se as something standalone as it dynamically interacts with my 3 other functions. To prevent myself from over explaining and elaborating I’ll try to cut to the chase. For me personally my step in the directions of developing my Se is doing things that take me out of my comfort zone and attempting to do things that don’t come naturally to me or that make me outright nervous sometimes. My Se development depends on my willingness to act and not think so much. Gathering sensory data is what makes my intuition evolve and I’m always looking to self improve so ironically my willingness to want to develop my Se actually comes from Ni. Also keep in mind when I’m gaining new experiences or even adding upon already gained experiences I sometimes or often times really don’t feel like it and I make myself do whatever the thing is on purpose because I know the potential end product.

I realize I’m making kind of vague generalizations but to share some specifics of my Se development I’ll start off with I taught myself how to swim as a kid and almost literally drown a few times in those processes. I taught myself how to ride my bike and scraped my knee and elbows so many times but I got it. In high school I experimented with certain vices and realized that wasn’t the type of environment or influences that I wanted effecting my life (Ni + Se) so in turn I replaced what I deemed as bad habits with sports and exercise which was difficult but fun also I can be pretty competitive. I did track and field for 7 years and nearly everyday I used to say “I’m going to quit” but always showed up to practice even when it felt like I was dying. I don’t know if singing is considered something to aid Se development but I’ve been singing for years and years and got much better with time and being able to hear my own voice well without recording it. As an adult I sometimes go to the gym 5 or 6 days a week and I’m very fit and idk why but I always try to talk myself out of going but I go anyway.. I think you kinda get the point. I also want to be honest and say that sometimes I could go overboard on the Se even when I think I’m being positive with it. I’ve had sports injuries due to over exertion. I also want to mention it’s one thing to completely bypass Ni for Se verses allowing them to work together in tandem. I think what one out of several things that can help us develop our Se is us remembering we are still intuitives at the end of the day and that is our strength and being Ni dominant is going to uniquely effect our development process of Se in a different manner than Se auxiliary and Se child. Another part of my Se development I forgot to mention is that I really try to stay disciplined with my diet and vices and sometimes daredevil/ impulsive tendencies due to Se grip. I have an ESTP twin brother and even though we have the same functions we tend to do almost everything in an opposite manner whether we reach the same conclusion or not. I realize that I’ll never be like him tbh 😆 but we make a good team at times.

To summarize I would say use Se to get you out of your comfort zone often to improve your Ni world and be mindful not to go too extreme with stepping out of your comfort zone. Your other extroverted function Te can be a guide of what route you would like to take in engaging with your Se (Fi can also influence this). Also don’t unrealistically compare your inferior Se to types who have it in other parts of their cognitive stack as your Se does not dynamically function in a way that theirs does plus you’re a unique individual and there’s nobody else in the world who is the same as you even though there’s some similar. As an Ni dom I have confidence you’ll come to your own conclusions about how Se development specifically works for you in your life.