You require Venusian energy along with Mercurian abilities. Start by simple yoga and travel upto daily discipline of reading something good, groom yourself very well and give yourself importance, wear simple comfortable clothes in which you feel most confident, choose colors according to planetary days ( whites on mondays, Reds on Tuesdays and so on), Appreciate others and be grateful, do selfless service ( Venus gets exalted in 12th house of devotion, spirituality and even expense but this expense is of charitable works)…This is just a small glimpse of what you can do practically, however start by training your mind first. That is completely in your own hands, only you hold that power. Hare Krishna!

Yes, Rahu and Ketu Dev’s placement plays karmic role in our life. As it is because of them that we are born and shall die.
Rahu Dev in Shatabhisha is good as he is sitting in his own sign. Rahu represents foreign elements so I would be affirmative about your abroad option. Rest see the placements of favourable planets and be positive and affirmative in your decision.

I personally do not accept used gifts unless the opposite person is my mother. There is a reason why donating clothes after someone’s passing away has a huge value, it is a karmic exchange. If I keep sentimental value aside and look just practically through astrology, why would we take upon someone else’s stored karmic substance from a cloth? Be practical when it comes to exchange of energies.