I must be the only person who can say accepting my first offer hindered my career rather than helped it.
If I had turned down the first job I was offered and accepted the second job I was offered (the two offers were a week apart), I can say
1) I would still be flying for a living now,
2) Would have twice as many flying hours by now
3) Would have a useful type on my license.
As a result of accepting the first job offer I also missed out on three further interviews of which two were for jet jobs.
So accepting the first job you are offered is not always in your best interest, hind-sight is a great thing but for me accepting the first job has set me back years.
If I ever secure a second commercial job I will write the full explanation.