Maybe you have some education/training that's related to research? If that's the case, you are already a researcher, maybe just not a good one.
You could say the following, which emphasizes that you are already on the path towards becoming a successful researcher. It leaves no room for doubt.
I am an aspiring economist / research analyst / writer, looking to be part of ...
If you'd like, you could use "young" in there, too, to qualify the statement a bit.
I'd discourage using the "I see myself as [...] in the future" statement. It just doesn't feel authentic and personal anymore. It's a very generic statement that lacks personality.
You could say something more specific; something that shows you are determined and laser focused:
My research interests include studying the behavior of ..
I plan to study the impact of ...
I have a strong interest in conducting policy research, with a focus on ...
Usually, statements like "I see myself as [...] in the future" are responses to questions like "Where do you see yourself in the next 5 years?"
In the next five years, I am going to complete my Data Science certification [or diploma] and use my knowledge and training of data analytics in understanding the effects of social assistance programs (such as child care benefits, children's fitness tax credits, etc.) on income inequality at the household level.
Edit: OP says in the comment
Actually I have noted all of these in other sentences of a paragraph where I have written about my research experiences and interests and need just a single sentence for concluding that paragraph.
If one already has research experience, then they are already in their research career (even if at the very early stages). There's no need for "future career", unless one is in a different field altogether.
You could maybe say something like:
Based on my experiences and interests, I am certain that I'd like to pursue career in economic research outside of academia.