Hello, I completed my BSc Psychology in 2016 with a 2.1. Like you, I wasn't sure if this field was for me in the long-term and wanted to maybe use my degree to branch out into other areas. This month I will be starting my MSc Health Psychology lol.
My mind frame changed completely and I realised I wanted to stick with the study area I had chosen. Before leaving uni I spoke to my supervisor who asked me what my next plans were. I told her I didn't know but that I didn't think Psychology was for me being of how long it will take and how competitive the field is. Her reply was 'You are already half way there, your showing the ability needed to be a Psychologist so why drop out at the final hurtle'. She was right, it was daft for me to put so much effort into my degree and learn so much that was psychology based just to throw it away to learn something else.
My advice is study the area if you plan to stay in the chosen field, if you are afraid of hard work then Psychology is NOT for you. I would say 75 - 80% of the course is stats and learning different research methods, only about 20% is the interesting part of psychology everyone is intrigued by like learning about the brain, people's personalities etc. Psychology is a science and therefore as Psychologists our job is to learn how to research and come up with findings so please be aware stats, graphs, spss and report writing are all the main focuses on this course.
Yes after your degree is over you may not walk into doing a Doctorate in Clinical Psychology but by getting a load of experience and maybe even getting a job as a research assistant it can be a possibility. Try not to think about how long and competitive things are as you are confronted with this in every field anyway. If the subject is something you want to do, then just do it.
Hope this helped.
Lauren