aAccompanied byying me were two idiots arwho have always been with me fromsince we were children, tTom and eEgie.

"Accompanied by" cannot start a sentence
To say something has been happening since the past, it would be "[noun] has/have been since [time]" ("children" isn't a time indicator, "childhood" or "when we were children" but when can be omitted here)
Names are capitalized

tToday

I went around riding my brother's bike.

No full stop. One complete sentence.

accompanied by two idiots are alwayswho have been with me fromsince children, thood: Tom and eEgie.

I have rewritten this to make it flow better. Use a colon to introduce the 'explanation' of who the two idiots are. Names begin with capital letters.

tToday

aAccompanied by two idiots arwho have always been with me fromsince childrenhood, tTom and eEgie.

Since "Tom" and "Egie" are names of people, they should be capitalised.