Yo, Im afraid to answer you this question normally speaking, No you should be fine but I don't wanna risk your account being banned its 9 years old thats some pretty number your 1 year from 10 :x
But awhile back I found this.
Myself I have done it with a 6-8 year old account (but I play taiko) and got to rank 5k in 2 days.
And im still not banned and lets go 1 step deeper, ive made some alts and there like 1 week old and are close to entering top 10k with like 2k PP and less then 10 hour.
What you have to worry the most about is people checking yo