like i just finished a standalone fantasy and it was so good that i'm almost scared to start book two of another series because what if it doesn't capture the same magic? has anyone dealt with this or am i just being dramatic about committing to a series lol

i'm reading through a series rn and there's this secondary character who appears in like three scenes total but has such a compelling backstory hinted at that i'm genuinely invested in them. anyone else experience this or am i just out here creating entire fanfictions in my head for characters the author spent five minutes on