No problem.

by not using straps, you will train your grip, hence will make your forearm grows big

The usage of straps allows you to lift slightly heavier weights on your deadlift compared to raw grip, hence forcing your body to recruit more muscle fibers from the back/hamstring and less from the forearms.

In short, I feel it's best to switch it up.

But it really depends on yourself, if you feel your forearms could use a little beefing and your grip is sub-par (your grip will affect the strength of other exercises as well, particularly those involving dumbbells), then by all means, forgo the straps.

If you feel like placing more emphasis on your back and hamstrings, go for straps.

Thanks -Dan for the reply. I did go around that area to find for gym yesterday evening but could not find any. Maybe I had missed it, will go and check it out later.

Yeah I saw 2 gyms at Mahkota Cheras the other day, just trying to find one which is nearer

Thanks again bro!

My Mondays will never be Chest Day. Dumbbells gone, benches gone  Therefore, Mondays is either Legs or Back day for me

Include more unilateral training. And definitely when you're trying to bulk. You won't be gaining any muscle if you're cutting so there's no way you're going to get a lagging muscle to catch up.

How can you perform 1 handed bench press? Besides machines I mean. Do dumbbells instead of barbells.

Probably should've phrased it better. I meant unilateral not in the actual sense of the word but more of choosing exercises which require both arms to work individually. So like kubuk said, incorporate more dumbbell exercises in your routine as well as stuff like hammer strength or plate-loaded machines which have separate levers for each arm.

Why? Pre wo no effect?