civic 2001 si electric problem

hi, im new to this site i really need help fast! So my civic si 2001 that i just got work fine until tonight, i was driving with my friend and notice my lights sometimes just flash but nothing else happende. then, suddenly, everything started to flash in my car!! My radio kept going on and off, my speedometer and dash turned on and off, my car became hunted! when i was in idle, my car accelerated alone( i have a manual car at least) and when i turned it off, tried to turn it back on and it didn't work, when i came back 10 minutes later, it turned back up like normal! i dont know what the problem can be, please help me( i will post videos of my problem when it happens again thank you in advence 😊

Have you checked to make sure the battery cables are clean and tight? Do the battery cables have molded ends or are the terminals clamped on to exposed copper wire?

You mention the car "accelerated along" but yet you seem more concerned about the electrical problem, so I'm suspecting the acceleration wasn't as dramatic as it sounds. Please describe what happened more.

-Rod

well like you said, the acceleration isn't that bad, the idle just goes down and up until i hangage the clutch but the electric problem is really bad, i worked on the car the other day and the wire for the battery seem OK. i can tell you what happened few minutes before the car became strange, the battery light turned on and off and then it stop few second before the bug. then the abs light flashed and then the car went crazy, the radio flashed, rpm, heat gauge and gaz gauge speedo all turned off and on until i was back home i tried turning the car off and on on the road and nothing changed