How hard is it to quit smoking?

I’m planning on quitting starting Aug 21st. My reason is so i can live longer for my child, plus he has asthma and i don’ t want the cigarette smoke in my clothes anymore when he breathes it in. Another reason is gas prices are so high now and between gas prices and buying cigarettes i spend at least -0 a month. This will be my first time ever doing this, i don’t even know how to quit or avoid the cravings. I really can’t afford the smoking cessation classes (don’t know if i spelled the word right lol) i just want to do it on my own. I already know that the nicotine gum won’t work because i already chew gum when i’m smoking a cigarette. Need advice please and thank you to all!
I have people that will support me, like my boyfriend (he wants me to quit also), co-workers, my mom said she’ll support me but she smokes too and i live with her, i know other family members will be willing to help me.

How do you quit smoking when your spouse smokes?

I really want to stop smoking before it takes a toll on me in any way. I hate the smell of cigarettes on my clothes and the transfer from my sheets to my bedding. We don’t smoke in our home except the bathroom. The main problem is I’ve tried to quit before (I smoke half a pack a day) but my DH smokes two packs a day and when he smokes when he gets home it makes it hard for me to quit. What do I do and/or what’s the best way to quit?