Hi!!
i have suffered with acne and acne scars for years and have only just started to notice an improvement!
some key points I’d give you are:
TIME: give it time - like with acne, your skin needs time to heal. Depending on the type of scar and how deep it is, it may fade quicker than others. Don’t stress over it too much and remember most of us have some scars as we’re all human and get spots!
SPF: spf is so so so important in general, but it really helps with fading acne scars as exposure to sun can actually deepen the appearance of scars by increasing redness. Not only does SPF prevent skin cancer, it can also help with acne scars!
AHA & BHA: I’d recommend you look into this a little beforehand, but if you do decide to go for it I recommend The Ordinary AHA & BHA mask. AHA helps reduce inflammatory acne and BHA helps prevent your pores clogging in the first place - this mask is fab and I’d recommend using it once every 2 weeks until your skin builds up tolerance
RETINOL: absolute magic. Retinol is fantastic for helping acne scars to fade and preventing wrinkles. Retinol helps to speed up cell turnover, however, I’d recommend also reading up on this and not using it in conjunction with the AHA and BHA as it makes your skin quite sensitive. I’d also recommend starting with a really small dose to build up tolerance, and keep in mind you won’t see results until at least 3 months, but usually 6-12! You should also use it with SPF as it can make your skin more sensitive to sunlight.
other physical treatments: for deeper scars, there’s not really anything a cream or serum will do to help as it is the skin that is uneven/damaged. I’d recommend either micro needling or a laser treatment if you’re able, micro needling helps cells to regenerate and can even out deep scars. Lasers can also help reduce redness and scars, however they are quite pricey.
hope this helps!

remember that you are not your acne scars, most people have them and it’s nothing to be ashamed of (and not really anything anybody notices or cares about!)