im stress crying how do i get in the right mind space

ive done so so many practice tests, at least one per week for the past 3 ish months. my scores have been usually increasing everytime my most recent was a 1470. i took 2 two again and my score dropped down to mid 1300s. im really worried and scared i dont want to disappoint myself or family considering the time and effort we have all put into this.

is there anyway you guys get into a good headspace/positive affirmations that help? test morning routines? good luck spells?? im genuinely just so stressed i cant sleep