I did struggle my whole life with "attention". Like my attention span in meetings is awful. I record everything so I can listen to later. it's time to look for a doctor.

Question: does stimulants interfere in other areas of life in a bad way (like sexual life etc)?

Depends on the drug and dosage. AFAIK stimulants generally don't have severe or long-lasting impact on those areas.

Both Ritalin and Adderall (as well as variants like Vyvanse) are vasoconstrictors and therefore affect blood flow. This leads to some mild discomfort. "Adderall dick" is a temporary condition comparable to "pool shrinkage"; it doesn't affect everyone, depends on the dose, and neither impacts performance--it still responds to sexual stimulation.

Stimulant usage can mildly increase blood pressure, which over the very long term (years, decades) can lead to ED and other more serious issues. However that is part of why these medications require close supervision by the prescribing doctor, who will add other medications like lisinopril to counteract those effects, if observed.

In rare but reported cases it can lead to some weird effects, like dissociating orgasms from physical climax -- you can find lots of self-reports on Reddit about these sorts of things. None of these are permanent and go away when the drug leaves your system.

In the vast majority of patients, none of the above happens, and I'm not aware of a single thing that is permanent (other than the effects of high blood pressure over time if you let that go unwatched). This is unlike, for example, SSRIs which have have permanent effects on sexual well-being. I bring this up because some doctors prescribe SSRIs as a first-line, so they don't have to prescribe controlled substances. Don't let them do this to you -- antidepressants can have some insanely bad (and in some cases, permanent) side effects, drastically alter your personality, and are not considered the standard of care for ADHD.