Shadman said he has not lost confidence from his half-starts in New Zealand which saw him finish with scores of 27, 29, 24 and 37 in the two Tests.
Bangladesh avenged their away first Test defeat to the Windies this after they were bowled out for 43 in the first Test, the lowest Test total since 1974.
Mahmudullah Riyad scored a career best 136 as Bangladesh were all out for 508 in their first innings of the second Test against West Indies
Bangladesh debutant Shadman Islam is happy to have realised the dream of representing his country in international cricket but feels he could have done better than scoring a half-century in his maiden Test innings.
Debutant opener Shadman Islam and skipper Shakib Al Hasan hit a fifty each to put Bangladesh into a comfortable position
Shadman, who replaced injured Imrul Kayes in the opening slot, anchored Bangladesh's innings from the start through his patient innings
Bangladesh debutant Shadman Islam displayed glimpses of his talent with a steady 36 not out in 116 balls, helping Bangladesh to 87/2 at lunch
Shadman Islam made his Test debut while Liton Das returned to take the place of the injured Mushfiqur Rahim.
Bangladesh have two Tests wins in 2017 and will eye drawing level with a third for their best year since 2014.
Kayes is out of the second Test with a shoulder injury, leaving the 23-year-old Shadman as the only opener in the squad.