Im probably being a hypocrite by giving advice about the same issue i have and not fully taking my own advice or other peoples for that matter but before those distressing thoughts about what the point is gets any worse for you, you can try doing these things: i know it feels impossible because every action you do seems so strange, unreal or pointless but you need to get out and experiance life if you want to get better. I know the anxiety is crippling but itll get better. Get an existential therapist or possibly one who specializes in ocd even if you dont have ocd, dpdr tends to give sufferers similar symptoms to ocd or make it develop temporarily. I have problems with this myself but you should try not to give meaning a significance. Even if theres no reason or point to life or whatever doesnt mean its a bad thing. Its depressing and anxiety fueling because youve assigned a negative meaning to the idea of there possibly being no point and thats why it gives you so much anxiety. Thats what im trying to do myself is detatch this negative value to it so i can possibly live life since i have this instinctual will to live and hopefully its my last hurdle in all this existential nonsense...