To the sec 3, you might feel lost now due to the new positions allocated and you might still be in the midst of searching your aims in guides and studies. continue searching, its normal to all. But during this period, always ask when in doubt. Its the fastest way to learn. Keep trying and apply different methods. Listen to advices and never give up easily.
To the sec 4, your direction/aim now should be.. i believe you all know it better than i do. But do continue to help your juniors until they are ready. Remember, time management is the key to success.