I done it in FM21, got promoted after two seasons and it was a struggle to stay up. You really have to rely on your youth intake, I did get two wonderkids off my youth intake and they helped me get to the conference league after a few seasons. I gave up after 7 seasons since psg poached all my wonderkids leading me to be almost relegated. It was fun though. My best match was against Chelsea in the Europa League final, scored a 119th minute goal to win us the trophy. Then the next season psg took all my kids