so stressed that i literally can't relax??

i have a ton of stress going on rn (moving, starting college in a month, etc) and i'm super stressed out. every day i feel super tense and on edge and i hate it:( i've been trying all the normal things i do to relax but they're just not working this time around. even when i try to sleep at night i can feel my heart going 100mph and i've been getting some stomach upsets too:/ does anyone have some recommendations on things i can do to relax and stop being so anxious?? i've been putting so much pressure on myself :(