What I have found recently is that while Ti demands you sort through things and make sense of them, Fe demands expression in some sort of way. If you find a friend that you can have deep conversations with, Fe and Ti can both be satisfied in the right circumstances, as Ti will gain a new perspective on an issue (well, Ne too I guess but more so in ye sense that) allowing it to come to some conclusion, and Fe will be able to express some of the things Ti was holding back for some time. I also recently just took a walk. It was a windy day, so I just walked out of my house barefoot and all, and just went around my neighborhood. It was near empty, and I've been in this neighborhood most of my life. So I felt that doing it engaged all my functions in some way, and it was a really great way to recharge. After that, and a night alone just listening to music, meditating, and grasping hold on life, I felt like a had a grip on myself again. I had found that Fe was likely driving me to feel nervous in social situations, like I needed to say something, and to do things that didn't feel like me. After doing some of these things I felt that I had released something I was holding onto, or grabbed hold of something I had lost before, and although it hasn't fixed a lot, I think it has but me back in the right mindset, and it's a first step.
That's not to say these things are permanent solutions, but done every once in awhile, they can ensure that you maintain hold over your functions and that they each stay satisfied and balanced.