My current routine has me at the gym 6 days a week but leaves a full week recovery for each bodypart.

I am training quite hard and am, in my opinion, very disciplined now for someone who trains alone.... so, my question is this:

Is it normal to be able to stack on weight almost EVERY week?

Example:
Last Wednesday was legs day, this was my routine, upped from week before:

Adductors:
60kg x10 2sets
70kg x10 3sets

Abductors
65kg x10 3sets
75kg x10 1set

Leg extension machine (up)
30kg x 10 2sets
50kg x10 4sets
55kg x10 2sets
60kg x10 to fail

Leg extension machine (down)
40kg x 10 2sets
60kg x10 1 set
70kg to fail

Calve press. On Horizontal leg press:
50kg x10 3sets
70kg x10 3sets
80kg x10 1sets

Leg press. Horizontal:
60kg x8 3sets
70kg x8 2sets
80kg x8 1set

Squats:
35kg x8 3sets




This week, i find all that easier and press on to this:

Adductors:
60kg x10 2sets
70kg x10 3sets
80kg x10 3sets

Abductors
65kg x10 3sets
75kg x10 2sets
85kg x10 1set

Leg extension machine (up)
30kg x 10 2sets
50kg x10 4sets
55kg x10 2sets
60kg x10 2sets

Leg extension machine (down)
40kg x 10 2sets
60kg x10 3sets
70kg to failure

Calve press. On Horizontal leg press:
50kg x10 3sets
70kg x10 3sets
80kg x10 2sets
90kg x10 2sets

Leg press. Horizontal:
60kg x8 3sets
70kg x8 3sets
80kg x8 3sets

Squats:
40kg x8 3sets

And im wondering if this is both normal, and safe to do?

Sorry for what may seem like a stupid question... im loving it but a little worried... lol