chains can make a bit of noise, nothing wrong with that. visibly you shouldn't be able to see any slack in the chain if it is back far enough in your dropouts. however you should be able to move it up and down half an inch or so.
headset sounds fine to me. you might want to consider putting something on your top tube to protect it from the bar swinging when carrying it.
if you've had it a couple of months now then worth rolling over to blb and getting them to look over everything. it's good to learn though so make sure you talk to them about what you should be looking for/repairing yourself.
chains can make a bit of noise, nothing wrong with that. visibly you shouldn't be able to see any slack in the chain if it is back far enough in your dropouts. however you should be able to move it up and down half an inch or so.
headset sounds fine to me. you might want to consider putting something on your top tube to protect it from the bar swinging when carrying it.
if you've had it a couple of months now then worth rolling over to blb and getting them to look over everything. it's good to learn though so make sure you talk to them about what you should be looking for/repairing yourself.