What's the next step

Started working as a fresher in a growing indian startup as a data scientist. Learning is good or feels good as it's my first job but I have to do extra work as the data science team is new and team size is super small.

Using frugal techniques as deadlines is quite short and makes me stressed a lot of time as I don't get time to correctly verify results.

Any idea how to improve the situation? right now I am just in stress and confusion.