Welcome to bluelight. It's against the rules to use pseudonyms like "swim" in place of "I/me" because they don't actually avoid self-incrimination.
If it's your first trip on acid, I suggest you cut your hit in half, take one half and wait 30 minutes to take the next one. This way it's not so aggressive and doesn't hit you all at once. Also, if you get nauseous take some ginger.
18, 120pounds. SWIM will be buying his first tab of acid and will be tripping alone (he's new to the area and doesn't have anyone to trip with) any advice? P.S. he's keeping a paxil with him in case of bad trip