Which one to chose?

HiI am 15years mechanical design engineer my CTC 8 to reach 15 yearsI am try many things to do my career change. But still now nothing happens.Where were you cross lot politics and ego no career growth no improvement in anything year, month, week, day, time passed.I Work hard and good at my job one day they throughout side. How to switch domain? Data science course completed and I am trying many interviews nothing happen Where to try? What to do?

Have observed from last 2-3 months as lot of people are leaving the company. After going on the notice period they start behaving very different and behaves like they don't know how this particular functionality worksThey stops thinkingJust want to get the tasks delegated so someone else can do this.Start asking questions which they already know answer of.Isn't this shitty?I understand they are on notice so they can allocate half time for work, but in that half time people are also looking for s...

Need help in deciding the company. 1.Fractal Analytics 2.IRIS Software Inc. 3.Perficient 4.BP (British petroleum) 5.Genpact 6.Nagarro 7.GlobalLogic CCTC: 16.4 fixed YOE: 4.7 All above companies are having ctc ranged from 23-25 fixed and position is Senior AWS Data Engg. I am looking for a company which is offering good quality work and even though I need to stretch myself a bit initially I am ok with it. For nagarro I will be initially on the bench. Also any leads for fractal with what is the sa...

I want to be able to rate myself at least 8/10 in all of these above mentioned techs in 3 months time.I currently stand at 2/10.Can somebody please help me with the order of learning and best resources for these to get started. Thank you!