Transmission Going bad?

[FAT TONY]

alright well after replacing the clutch and rear main seal i finally got the truck back together, been riding it around for the past couple of days and came across a couple concerns 1) when leaving it in first and not shifting to second it makes a grinding noise, 2) when slowing down in first it makes a grinding noise, 3) when in another gear and coming to a stop it wont go into first without the truck being completely stopped 4) when going from second to third it makes a grinding noise and then engages into third 5) when pressing the clutch pedal all the way down it makes a noise which it didn't make before when i would press the clutch all the way down...... so im thinking some were in the reassembly i messed something up, any ideas as to what it could be? ill upload a video in a little bit isnt very good but it shows a couple of the noises im talking about