You need to check IR for this.
Descriptions of beta I saw are a little "dark" and impressionable N-Fe types may don't like this image and then reject the possibility to be beta just because "beta is bad". As I think you are introvert according to your video, INFP variant is among possible there (ISTJ is too doubtful).
Recently I saw here INFP Fay wich thought INFJ as her type, then she wrote xNFP in profile.
I'm not clear if you mean MBTI type or socionics type because MBTI types use all capital letters and the socionics types puts the j/p in lower case to distinguish it from MBTI. I guess you probably mean INFP as socionics INFp (IEI) but just wanted to clarify.
LII-Ne with strong EII tendencies, 6w7-9w1-3w4 so/sp/sx, INxP