SPSS
Focus on thinking and not on calculations.
For this there is software.

Instructions
instructional videos
for starters
Spaces for Beginners 1: Variables and Data
Spaces for Beginners 2: Descriptive Statistics
Spaces for Beginners 3: Recoding
Spaces for Beginners 4: Creating a new variable from existing variables
Spaces for Beginners 5: Sorting and selecting observations
Spaces for Beginners 6: File splitting
Spaces for Beginners 7: Standard Scores
Spaces for Beginners 8: Relationship between Binary Variables
Spaces for Beginners 9: Scatter diagram
Spaces for Beginners 10: Pearson Adapter
Refresh
Spaces 2: Descriptive Statistics
Spaces 3: Index and reliability variables
Spaces 8: T-test for one sample
Spaces 9: T-test for paired samples
Spokes 10: Excel graph for mean and standard deviation
Various
How to transfer a questionnaire with randomization from Qualtrix to Spaces