i agree with everything bronco just said
i would add that a little leg work might be worth doing otherwise someway down the line you will be kicking yourself for not doing it (i didnt train legs for over a year when i started, they still havent quite caught up). a good way to approach legs when you dont have a spotter is doing front squats. use a power clean to get the weight up (great back exercise) and work from there.
if you have a power cage, you can bench entirely on your own if you set the pins just high enough that you can slide under the bar. then, you press this bar from the bottom position. its a really really good exercise and normal benching will be super easy after this!
good luck with getting strong, and your avatar is cool