Hey

I've decided I'm going on a hike when this schoolyear is over. Never done something like this before, I'm just going to start walking east from where I live and see where I end up.
Not sure how long I'll be able to carry on, but it doesn't really matter.

I want to know your opinion on the backpack in pic related.
The reason I'm interrested.
>really cheap
>Have place on both sides for waterbottles, so balanced weight.
>Big enough for all my stuff including sleeping gear, so I don't have to strap anything onto the bag.

The reason I'm hesitating is because the shoulder and hipstrap look really uncomfortable to walk with daily. Would it be possible to replace or adjust those straps and end up with a decent backpack?