Yeah, don't give up yet!
Consider something may have spoiled your blotter, wrong roa, try another or different batch before assuming anything.
Be aware of the unknown response curve, higher doses definitely produce stronger effects, but the curve up them might be surprisngly sharp & might even be idiosyncratic, unquie to u. Be sure to take a min 10 day break, but I'd think twice about going from 1 to 4, I really would. If the curve is different to acid, that hit might surpass a hefty 300ug LSD dose, if you plan 4 X 150ug!
Fine building up by doing two next time, three in a month or two. But assuming one thing about 150ug & using it to QUADRUPLE the very next dose, well, you strole bravely in where I wouldn't dare to tread my man!
Do report it!