(These are parts of function-by-function analysis of types by Panchenko from socionics.org - they are not very good translations, but it doesn't matter).
INTj:Seventh-Intuition function of time-element strong, but not creative. It should load difficult, but non-standard tasks. This element quietly takes criticism, but constructive. Issues connected with the timing-delay, the idea of consolidating the group may agree with others, but only until such time as they are not inconsistent with his views on the prospects of its business.
Eighth-logic functions act competently performed work, a clear knowledge of today's action to achieve results. In this respect the interests of Douala, neobidnye gives tips on how to prevent other more powerful strikes.
It sounds like for your seventh function you 'quietly take criticism, if it is constructive' in that area. For your eighth function, it seems that you give 'polite advice' in that area - e.g. for a INTj, this would be giving 'polite advice' on to others, in particular ESFjs, who obviously don't like full-force .Seventh-function logic action. Particular attention to issues related to the algorithm, the detailed preparation of today does not pay, but until then, it is not contrary to the logic of the development prospects of the case.
Eighth-Intuition function of time. This function allows polite advice on environmental timing delays of a case, the relevance of this point, orientation in the flow of time.
For your fifth and sixth functions - it seems that you act hostilely to those who attack your sixth function, while you willing (i.e. passively) accept those who support your fifth function - your sixth function is your 'Hidden Agenda' because you only use it as a counter-attack, contrasting with your Ego block functions which you use most of the time.