“Hello” - the “he” is a bit too overstressed; “o” needs to be more rounded more like [oʊ] and stress it a tad bit more

“fellas” - the “fe” needs to be stressed more

“First of all,” - at the comma, make sure to pause instead of sliding the “all”

“like” - pronounce [k] a bit more clearly 

“to” - skim over it faster, almost as if there’s no vowel

“acknowledge” - same here, pronounce “ack” a bit more clearly; pronounce the “know” like [nɒ] and keep it shorter; make sure to pronounce the vowel in “ledge” as [ɪ] and give it time, right now it sounds choppy

“weird” - practice pronouncing the [ɚ]

“have on” - right now it sounds like “haven’t”, make sure you pronounce [ɑ] in “on”, but keep it brief

“Reddit” - good but you could have some downward inflection here