mulling over this question=to think carefully about something for a long time:
Leather is very much in fashion this season, as is the ubiquitous denim.-seeming to be everywhere:
help our younger ingenuous selves
It has to be said it was rather ingenuous of him to ask a complete stranger to take care of his luggage.=простодушный/наивный= /ɪnˈdʒen.ju.əs/ honest, sincere, and trusting, sometimes in a way that seems silly:
wise up = informal=осознавать=дать понять
Living on my own without a job for four years wised me up to some of the difficulties people in poverty face.= To become more shrewd, prudent, or aware (about something)
selfhood=I'm not interested in getting rid of that sense of selfhood= the state of having a distinct identity=индивидуальность
a rueful person= /ˈruː.fəl/o feel sorry about an event and wish it had not happened = унылый, удручённый