¿mastribation hacks?

gonna try penitration tonight in the bath (ik it's not good to do it under water, I wont) but I don't have any lube, wich sucks, and I have no chance of getting any, what can I use? also is it normal to feel sore after? (I've tried before and I felt kinda sore that night) also can I wrap things in saran wrap as I don't have condoms to put on objects? I'm gonna take the handel off a hairbrush and try that but it's huge! so I'll probally start with a razor handle (a trick I learned on here!) as I'm kinda bored of just clit stim, cause I've been doing that since I was 6 (don't judge, I now know lots of people are the same😂) so I just came on here for advice and thoughts for a sexy horny night, and if all goes we hopefully I'll have my fist orgasm😉😉